113615231 has 4 divisors (see below), whose sum is σ = 119595000. Its totient is φ = 107635464.

The previous prime is 113615221. The next prime is 113615261. The reversal of 113615231 is 132516311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113615231 - 2²⁶ = 46506367 is a prime.

It is a super-2 number, since 2×113615231² = 25816841430366722, 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 = 113615197 and 113615206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113615221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989856 + ... + 2989893.

It is an arithmetic number, because the mean of its divisors is an integer number (29898750).

Almost surely, 2^113615231 is an apocalyptic number.

113615231 is a deficient number, since it is larger than the sum of its proper divisors (5979769).

113615231 is an equidigital number, since it uses as much as digits as its factorization.

113615231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979768.

The product of its digits is 540, while the sum is 23.

The square root of 113615231 is about 10659.0445631867. The cubic root of 113615231 is about 484.3346259015.

The spelling of 113615231 in words is "one hundred thirteen million, six hundred fifteen thousand, two hundred thirty-one".