138718174 has 16 divisors (see below), whose sum is σ = 237967200. Its totient is φ = 59409504.

The previous prime is 138718123. The next prime is 138718199. The reversal of 138718174 is 471817831.

138718174 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 26572 + ... + 31360.

It is an arithmetic number, because the mean of its divisors is an integer number (14872950).

Almost surely, 2^138718174 is an apocalyptic number.

138718174 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138718174 is a deficient number, since it is larger than the sum of its proper divisors (99249026).

138718174 is a wasteful number, since it uses less digits than its factorization.

138718174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6867.

The product of its digits is 37632, while the sum is 40.

The square root of 138718174 is about 11777.8679734492. The cubic root of 138718174 is about 517.6598169918.

The spelling of 138718174 in words is "one hundred thirty-eight million, seven hundred eighteen thousand, one hundred seventy-four".