Base | Representation |
---|---|

bin | 1111101001111… |

… | …11000010011001 |

3 | 100011010021011112 |

4 | 13310333002121 |

5 | 232110031301 |

6 | 21010510105 |

7 | 3153200612 |

oct | 764770231 |

9 | 304107145 |

10 | 131330201 |

11 | 68150362 |

12 | 37b95335 |

13 | 212930a2 |

14 | 13628c09 |

15 | b7e29bb |

hex | 7d3f099 |

131330201 has 2 divisors, whose sum is σ = 131330202. Its totient is φ = 131330200.

The previous prime is 131330189. The next prime is 131330273. The reversal of 131330201 is 102033131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127148176 + 4182025 = 11276^2 + 2045^2 .

It is an emirp because it is prime and its reverse (102033131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131330201 - 2^{6} = 131330137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131330281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65665100 + 65665101.

It is an arithmetic number, because the mean of its divisors is an integer number (65665101).

Almost surely, 2^{131330201} is an apocalyptic number.

It is an amenable number.

131330201 is a deficient number, since it is larger than the sum of its proper divisors (1).

131330201 is an equidigital number, since it uses as much as digits as its factorization.

131330201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131330201 is about 11459.9389614430. The cubic root of 131330201 is about 508.3016697170.

Adding to 131330201 its reverse (102033131), we get a palindrome (233363332).

The spelling of 131330201 in words is "one hundred thirty-one million, three hundred thirty thousand, two hundred one".

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