131188307 has 2 divisors, whose sum is σ = 131188308. Its totient is φ = 131188306.

The previous prime is 131188283. The next prime is 131188349. The reversal of 131188307 is 703881131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131188307 - 2¹² = 131184211 is a prime.

It is not a weakly prime, because it can be changed into another prime (131188357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65594153 + 65594154.

It is an arithmetic number, because the mean of its divisors is an integer number (65594154).

Almost surely, 2^131188307 is an apocalyptic number.

131188307 is a deficient number, since it is larger than the sum of its proper divisors (1).

131188307 is an equidigital number, since it uses as much as digits as its factorization.

131188307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 131188307 is about 11453.7464176574. The cubic root of 131188307 is about 508.1185411152.

The spelling of 131188307 in words is "one hundred thirty-one million, one hundred eighty-eight thousand, three hundred seven".