115183638 has 12 divisors (see below), whose sum is σ = 249564588. Its totient is φ = 38394540.

The previous prime is 115183633. The next prime is 115183661. The reversal of 115183638 is 836381511.

115183638 is a `hidden beast` number, since 1 + 1 + 5 + 18 + 3 + 638 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115183633) 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 5 ways as a sum of consecutive naturals, for example, 3199528 + ... + 3199563.

It is an arithmetic number, because the mean of its divisors is an integer number (20797049).

Almost surely, 2^115183638 is an apocalyptic number.

115183638 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

115183638 is an abundant number, since it is smaller than the sum of its proper divisors (134380950).

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

115183638 is a wasteful number, since it uses less digits than its factorization.

115183638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399099 (or 6399096 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 115183638 is about 10732.3640452605. The cubic root of 115183638 is about 486.5531222151.

The spelling of 115183638 in words is "one hundred fifteen million, one hundred eighty-three thousand, six hundred thirty-eight".