131455432 has 16 divisors (see below), whose sum is σ = 246602700. Its totient is φ = 65694720.

The previous prime is 131455411. The next prime is 131455451. The reversal of 131455432 is 234554131.

It can be written as a sum of positive squares in 2 ways, for example, as 124411716 + 7043716 = 11154^2 + 2654^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 131455432.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24444 + ... + 29332.

Almost surely, 2^131455432 is an apocalyptic number.

It is an amenable number.

131455432 is a deficient number, since it is larger than the sum of its proper divisors (115147268).

131455432 is a wasteful number, since it uses less digits than its factorization.

131455432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8256 (or 8252 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 131455432 is about 11465.4015193538. The cubic root of 131455432 is about 508.4631834781.

The spelling of 131455432 in words is "one hundred thirty-one million, four hundred fifty-five thousand, four hundred thirty-two".