138104592 has 20 divisors (see below), whose sum is σ = 356770320. Its totient is φ = 46034848.

The previous prime is 138104573. The next prime is 138104599. The reversal of 138104592 is 295401831.

It is not an unprimeable number, because it can be changed into a prime (138104599) 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, 1438542 + ... + 1438637.

It is an arithmetic number, because the mean of its divisors is an integer number (17838516).

Almost surely, 2^138104592 is an apocalyptic number.

138104592 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138104592 is an abundant number, since it is smaller than the sum of its proper divisors (218665728).

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

138104592 is a wasteful number, since it uses less digits than its factorization.

138104592 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2877190 (or 2877184 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 138104592 is about 11751.7910124372. The cubic root of 138104592 is about 516.8954465597.

The spelling of 138104592 in words is "one hundred thirty-eight million, one hundred four thousand, five hundred ninety-two".