113431524 has 24 divisors (see below), whose sum is σ = 265446048. Its totient is φ = 37700160.

The previous prime is 113431523. The next prime is 113431579. The reversal of 113431524 is 425134311.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 113431494 and 113431503.

It is not an unprimeable number, because it can be changed into a prime (113431523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9457 + ... + 17784.

It is an arithmetic number, because the mean of its divisors is an integer number (11060252).

Almost surely, 2^113431524 is an apocalyptic number.

It is an amenable number.

113431524 is an abundant number, since it is smaller than the sum of its proper divisors (152014524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113431524 is a wasteful number, since it uses less digits than its factorization.

113431524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27595 (or 27593 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 113431524 is about 10650.4236535454. The cubic root of 113431524 is about 484.0734412609.

Adding to 113431524 its reverse (425134311), we get a palindrome (538565835).

The spelling of 113431524 in words is "one hundred thirteen million, four hundred thirty-one thousand, five hundred twenty-four".