131695568 has 10 divisors (see below), whose sum is σ = 255160194. Its totient is φ = 65847776.

The previous prime is 131695559. The next prime is 131695573. The reversal of 131695568 is 865596131.

It can be written as a sum of positive squares in only one way, i.e., 127418944 + 4276624 = 11288^2 + 2068^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4115471 + ... + 4115502.

Almost surely, 2^131695568 is an apocalyptic number.

It is an amenable number.

131695568 is a deficient number, since it is larger than the sum of its proper divisors (123464626).

131695568 is an equidigital number, since it uses as much as digits as its factorization.

131695568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8230981 (or 8230975 counting only the distinct ones).

The product of its digits is 194400, while the sum is 44.

The square root of 131695568 is about 11475.8689431345. The cubic root of 131695568 is about 508.7726065773.

The spelling of 131695568 in words is "one hundred thirty-one million, six hundred ninety-five thousand, five hundred sixty-eight".