113213856 has 96 divisors (see below), whose sum is σ = 357557760. Its totient is φ = 30640896.

The previous prime is 113213851. The next prime is 113213869. The reversal of 113213856 is 658312311.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (113213851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8335 + ... + 17201.

It is an arithmetic number, because the mean of its divisors is an integer number (3724560).

Almost surely, 2^113213856 is an apocalyptic number.

113213856 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 113213856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178778880).

113213856 is an abundant number, since it is smaller than the sum of its proper divisors (244343904).

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

113213856 is a wasteful number, since it uses less digits than its factorization.

113213856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8906 (or 8898 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 113213856 is about 10640.1999981203. The cubic root of 113213856 is about 483.7636074399.

The spelling of 113213856 in words is "one hundred thirteen million, two hundred thirteen thousand, eight hundred fifty-six".