113158812 has 48 divisors (see below), whose sum is σ = 294164640. Its totient is φ = 33616128.

The previous prime is 113158807. The next prime is 113158831. The reversal of 113158812 is 218851311.

It is a self number, because there is not a number n which added to its sum of digits gives 113158812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7983 + ... + 17030.

It is an arithmetic number, because the mean of its divisors is an integer number (6128430).

Almost surely, 2^113158812 is an apocalyptic number.

113158812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113158812 is an abundant number, since it is smaller than the sum of its proper divisors (181005828).

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

113158812 is a wasteful number, since it uses less digits than its factorization.

113158812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25062 (or 25060 counting only the distinct ones).

The product of its digits is 1920, while the sum is 30.

The square root of 113158812 is about 10637.6130781299. The cubic root of 113158812 is about 483.6851935967.

The spelling of 113158812 in words is "one hundred thirteen million, one hundred fifty-eight thousand, eight hundred twelve".