113555540 has 36 divisors (see below), whose sum is σ = 277402356. Its totient is φ = 38932992.

The previous prime is 113555513. The next prime is 113555551. The reversal of 113555540 is 45555311.

It can be written as a sum of positive squares in 2 ways, for example, as 76807696 + 36747844 = 8764^2 + 6062^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56957 + ... + 58916.

It is an arithmetic number, because the mean of its divisors is an integer number (7705621).

Almost surely, 2^113555540 is an apocalyptic number.

113555540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113555540 is an abundant number, since it is smaller than the sum of its proper divisors (163846816).

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

113555540 is a wasteful number, since it uses less digits than its factorization.

113555540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115896 (or 115887 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 113555540 is about 10656.2441788840. The cubic root of 113555540 is about 484.2497913761.

The spelling of 113555540 in words is "one hundred thirteen million, five hundred fifty-five thousand, five hundred forty".