138714672 has 40 divisors (see below), whose sum is σ = 365976576. Its totient is φ = 45253696.

The previous prime is 138714661. The next prime is 138714701. The reversal of 138714672 is 276417831.

It is a self number, because there is not a number n which added to its sum of digits gives 138714672.

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, 28488 + ... + 32999.

Almost surely, 2^138714672 is an apocalyptic number.

138714672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138714672 is an abundant number, since it is smaller than the sum of its proper divisors (227261904).

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

138714672 is a wasteful number, since it uses less digits than its factorization.

138714672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61545 (or 61539 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 138714672 is about 11777.7193038381. The cubic root of 138714672 is about 517.6554607735.

The spelling of 138714672 in words is "one hundred thirty-eight million, seven hundred fourteen thousand, six hundred seventy-two".