113959128 has 32 divisors (see below), whose sum is σ = 285159600. Its totient is φ = 37951488.

The previous prime is 113959123. The next prime is 113959129. The reversal of 113959128 is 821959311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113959121) 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 7 ways as a sum of consecutive naturals, for example, 49000 + ... + 51272.

Almost surely, 2^113959128 is an apocalyptic number.

It is an amenable number.

113959128 is an abundant number, since it is smaller than the sum of its proper divisors (171200472).

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

113959128 is a wasteful number, since it uses less digits than its factorization.

113959128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4371 (or 4367 counting only the distinct ones).

The product of its digits is 19440, while the sum is 39.

The square root of 113959128 is about 10675.1640736806. The cubic root of 113959128 is about 484.8228041534.

The spelling of 113959128 in words is "one hundred thirteen million, nine hundred fifty-nine thousand, one hundred twenty-eight".