138465174 has 16 divisors (see below), whose sum is σ = 284415408. Its totient is φ = 44907552.

The previous prime is 138465167. The next prime is 138465191. The reversal of 138465174 is 471564831.

It is a Curzon number.

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, 311637 + ... + 312080.

It is an arithmetic number, because the mean of its divisors is an integer number (17775963).

Almost surely, 2^138465174 is an apocalyptic number.

138465174 is an abundant number, since it is smaller than the sum of its proper divisors (145950234).

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

138465174 is a wasteful number, since it uses less digits than its factorization.

138465174 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623759.

The product of its digits is 80640, while the sum is 39.

The square root of 138465174 is about 11767.1225879567. The cubic root of 138465174 is about 517.3449156051.

The spelling of 138465174 in words is "one hundred thirty-eight million, four hundred sixty-five thousand, one hundred seventy-four".