118513836 has 72 divisors (see below), whose sum is σ = 354201120. Its totient is φ = 32691456.

The previous prime is 118513799. The next prime is 118513841. The reversal of 118513836 is 638315811.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 118513836.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 801 + ... + 15416.

It is an arithmetic number, because the mean of its divisors is an integer number (4919460).

Almost surely, 2^118513836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 118513836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177100560).

118513836 is an abundant number, since it is smaller than the sum of its proper divisors (235687284).

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

118513836 is a wasteful number, since it uses less digits than its factorization.

118513836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16263 (or 16258 counting only the distinct ones).

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

The square root of 118513836 is about 10886.4060185169. The cubic root of 118513836 is about 491.1977307789.

The spelling of 118513836 in words is "one hundred eighteen million, five hundred thirteen thousand, eight hundred thirty-six".