113261520 has 40 divisors (see below), whose sum is σ = 351111456. Its totient is φ = 30203008.

The previous prime is 113261513. The next prime is 113261537. The reversal of 113261520 is 25162311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235722 + ... + 236201.

Almost surely, 2^113261520 is an apocalyptic number.

113261520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113261520 is an abundant number, since it is smaller than the sum of its proper divisors (237849936).

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

113261520 is a wasteful number, since it uses less digits than its factorization.

113261520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471939 (or 471933 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 113261520 is about 10642.4395699482. The cubic root of 113261520 is about 483.8314874512.

The spelling of 113261520 in words is "one hundred thirteen million, two hundred sixty-one thousand, five hundred twenty".