118138825 has 12 divisors (see below), whose sum is σ = 167419840. Its totient is φ = 81009360.

The previous prime is 118138771. The next prime is 118138849. The reversal of 118138825 is 528831811.

It is not a de Polignac number, because 118138825 - 2⁷ = 118138697 is a prime.

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, 337365 + ... + 337714.

Almost surely, 2^118138825 is an apocalyptic number.

It is an amenable number.

118138825 is a deficient number, since it is larger than the sum of its proper divisors (49281015).

118138825 is an equidigital number, since it uses as much as digits as its factorization.

118138825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675096 (or 675091 counting only the distinct ones).

The product of its digits is 15360, while the sum is 37.

The square root of 118138825 is about 10869.1685514578. The cubic root of 118138825 is about 490.6790875770.

The spelling of 118138825 in words is "one hundred eighteen million, one hundred thirty-eight thousand, eight hundred twenty-five".