138734592 has 44 divisors (see below), whose sum is σ = 369786456. Its totient is φ = 46243840.

The previous prime is 138734591. The next prime is 138734623. The reversal of 138734592 is 295437831.

It is not an unprimeable number, because it can be changed into a prime (138734591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19509 + ... + 25652.

Almost surely, 2^138734592 is an apocalyptic number.

138734592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138734592 is an abundant number, since it is smaller than the sum of its proper divisors (231051864).

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

138734592 is an equidigital number, since it uses as much as digits as its factorization.

138734592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45184 (or 45166 counting only the distinct ones).

The product of its digits is 181440, while the sum is 42.

The square root of 138734592 is about 11778.5649380559. The cubic root of 138734592 is about 517.6802387418.

The spelling of 138734592 in words is "one hundred thirty-eight million, seven hundred thirty-four thousand, five hundred ninety-two".