118725138 has 36 divisors (see below), whose sum is σ = 299238030. Its totient is φ = 33921216.

The previous prime is 118725121. The next prime is 118725163. The reversal of 118725138 is 831527811.

It can be written as a sum of positive squares in only one way, i.e., 90497169 + 28227969 = 9513^2 + 5313^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 66423 + ... + 68186.

Almost surely, 2^118725138 is an apocalyptic number.

118725138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

118725138 is an abundant number, since it is smaller than the sum of its proper divisors (180512892).

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

118725138 is a wasteful number, since it uses less digits than its factorization.

118725138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134631 (or 134621 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 118725138 is about 10896.1065523424. The cubic root of 118725138 is about 491.4894813551.

The spelling of 118725138 in words is "one hundred eighteen million, seven hundred twenty-five thousand, one hundred thirty-eight".