113215856 has 80 divisors (see below), whose sum is σ = 248567424. Its totient is φ = 49600512.

The previous prime is 113215847. The next prime is 113215873. The reversal of 113215856 is 658512311.

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, 361556 + ... + 361868.

Almost surely, 2^113215856 is an apocalyptic number.

113215856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113215856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124283712).

113215856 is an abundant number, since it is smaller than the sum of its proper divisors (135351568).

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

113215856 is a wasteful number, since it uses less digits than its factorization.

113215856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 412 counting only the distinct ones).

The product of its digits is 7200, while the sum is 32.

The square root of 113215856 is about 10640.2939809011. The cubic root of 113215856 is about 483.7664560946.

The spelling of 113215856 in words is "one hundred thirteen million, two hundred fifteen thousand, eight hundred fifty-six".