118139912 has 16 divisors (see below), whose sum is σ = 241650000. Its totient is φ = 53699920.

The previous prime is 118139899. The next prime is 118139921. The reversal of 118139912 is 219931811.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671162 + ... + 671337.

It is an arithmetic number, because the mean of its divisors is an integer number (15103125).

Almost surely, 2^118139912 is an apocalyptic number.

It is an amenable number.

118139912 is an abundant number, since it is smaller than the sum of its proper divisors (123510088).

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

118139912 is a wasteful number, since it uses less digits than its factorization.

118139912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342516 (or 1342512 counting only the distinct ones).

The product of its digits is 3888, while the sum is 35.

The square root of 118139912 is about 10869.2185551676. The cubic root of 118139912 is about 490.6805924916.

The spelling of 118139912 in words is "one hundred eighteen million, one hundred thirty-nine thousand, nine hundred twelve".