113392531 has 8 divisors (see below), whose sum is σ = 133094240. Its totient is φ = 94566528.

The previous prime is 113392519. The next prime is 113392537. The reversal of 113392531 is 135293311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-113392531 is a prime.

It is a super-2 number, since 2×113392531² = 25715732173171922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113392531.

It is not an unprimeable number, because it can be changed into a prime (113392537) 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, 218646 + ... + 219163.

It is an arithmetic number, because the mean of its divisors is an integer number (16636780).

Almost surely, 2^113392531 is an apocalyptic number.

113392531 is a deficient number, since it is larger than the sum of its proper divisors (19701709).

113392531 is an equidigital number, since it uses as much as digits as its factorization.

113392531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437853.

The product of its digits is 2430, while the sum is 28.

The square root of 113392531 is about 10648.5929117419. The cubic root of 113392531 is about 484.0179668557.

The spelling of 113392531 in words is "one hundred thirteen million, three hundred ninety-two thousand, five hundred thirty-one".