131595507 has 12 divisors (see below), whose sum is σ = 191134944. Its totient is φ = 87244560.

The previous prime is 131595493. The next prime is 131595509. The reversal of 131595507 is 705595131.

131595507 is a `hidden beast` number, since 13 + 1 + 595 + 50 + 7 = 666.

It is not a de Polignac number, because 131595507 - 2⁴ = 131595491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131595509) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38763 + ... + 42020.

It is an arithmetic number, because the mean of its divisors is an integer number (15927912).

Almost surely, 2^131595507 is an apocalyptic number.

131595507 is a deficient number, since it is larger than the sum of its proper divisors (59539437).

131595507 is a wasteful number, since it uses less digits than its factorization.

131595507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80970 (or 80967 counting only the distinct ones).

The product of its (nonzero) digits is 23625, while the sum is 36.

The square root of 131595507 is about 11471.5084884247. The cubic root of 131595507 is about 508.6437204520.

The spelling of 131595507 in words is "one hundred thirty-one million, five hundred ninety-five thousand, five hundred seven".