138739118 has 16 divisors (see below), whose sum is σ = 239714304. Its totient is φ = 58990680.

The previous prime is 138739093. The next prime is 138739123. The reversal of 138739118 is 811937831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37238 + ... + 40793.

It is an arithmetic number, because the mean of its divisors is an integer number (14982144).

Almost surely, 2^138739118 is an apocalyptic number.

138739118 is a deficient number, since it is larger than the sum of its proper divisors (100975186).

138739118 is a wasteful number, since it uses less digits than its factorization.

138739118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78167.

The product of its digits is 36288, while the sum is 41.

The square root of 138739118 is about 11778.7570651576. The cubic root of 138739118 is about 517.6858681844.

The spelling of 138739118 in words is "one hundred thirty-eight million, seven hundred thirty-nine thousand, one hundred eighteen".