113612631 has 8 divisors (see below), whose sum is σ = 165254784. Its totient is φ = 68856120.

The previous prime is 113612627. The next prime is 113612657. The reversal of 113612631 is 136216311.

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

It is not a de Polignac number, because 113612631 - 2² = 113612627 is a prime.

It is a super-2 number, since 2×113612631² = 25815659845484322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113612621) 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, 1721371 + ... + 1721436.

It is an arithmetic number, because the mean of its divisors is an integer number (20656848).

Almost surely, 2^113612631 is an apocalyptic number.

113612631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113612631 is a deficient number, since it is larger than the sum of its proper divisors (51642153).

113612631 is a wasteful number, since it uses less digits than its factorization.

113612631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3442821.

The product of its digits is 648, while the sum is 24.

The square root of 113612631 is about 10658.9226003382. The cubic root of 113612631 is about 484.3309313275.

Adding to 113612631 its reverse (136216311), we get a palindrome (249828942).

The spelling of 113612631 in words is "one hundred thirteen million, six hundred twelve thousand, six hundred thirty-one".