113252531 has 4 divisors (see below), whose sum is σ = 129431472. Its totient is φ = 97073592.

The previous prime is 113252527. The next prime is 113252551. The reversal of 113252531 is 135252311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135252311 = 61 ⋅2217251.

It is not a de Polignac number, because 113252531 - 2² = 113252527 is a prime.

It is a super-2 number, since 2×113252531² = 25652271555811922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113252497 and 113252506.

It is not an unprimeable number, because it can be changed into a prime (113252551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8089460 + ... + 8089473.

It is an arithmetic number, because the mean of its divisors is an integer number (32357868).

Almost surely, 2^113252531 is an apocalyptic number.

113252531 is a deficient number, since it is larger than the sum of its proper divisors (16178941).

113252531 is an equidigital number, since it uses as much as digits as its factorization.

113252531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16178940.

The product of its digits is 900, while the sum is 23.

The square root of 113252531 is about 10642.0172429855. The cubic root of 113252531 is about 483.8186873513.

The spelling of 113252531 in words is "one hundred thirteen million, two hundred fifty-two thousand, five hundred thirty-one".