113249520 has 60 divisors (see below), whose sum is σ = 380332056. Its totient is φ = 30199680.

The previous prime is 113249509. The next prime is 113249527. The reversal of 113249520 is 25942311.

113249520 is a `hidden beast` number, since 1 + 132 + 4 + 9 + 520 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113249527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77926 + ... + 79365.

Almost surely, 2^113249520 is an apocalyptic number.

113249520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113249520 is an abundant number, since it is smaller than the sum of its proper divisors (267082536).

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

113249520 is a wasteful number, since it uses less digits than its factorization.

113249520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157310 (or 157301 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 113249520 is about 10641.8757745052. The cubic root of 113249520 is about 483.8143996150.

The spelling of 113249520 in words is "one hundred thirteen million, two hundred forty-nine thousand, five hundred twenty".