113638833 has 24 divisors (see below), whose sum is σ = 204649536. Its totient is φ = 59032800.

The previous prime is 113638823. The next prime is 113638841. The reversal of 113638833 is 338836311.

113638833 is a `hidden beast` number, since 1 + 13 + 638 + 8 + 3 + 3 = 666.

It is not a de Polignac number, because 113638833 - 2⁵ = 113638801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113638823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81298 + ... + 82683.

It is an arithmetic number, because the mean of its divisors is an integer number (8527064).

Almost surely, 2^113638833 is an apocalyptic number.

It is an amenable number.

113638833 is a deficient number, since it is larger than the sum of its proper divisors (91010703).

113638833 is a wasteful number, since it uses less digits than its factorization.

113638833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164005 (or 164002 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 113638833 is about 10660.1516405725. The cubic root of 113638833 is about 484.3681615295.

The spelling of 113638833 in words is "one hundred thirteen million, six hundred thirty-eight thousand, eight hundred thirty-three".