138654192 has 20 divisors (see below), whose sum is σ = 358190120. Its totient is φ = 46218048.

The previous prime is 138654181. The next prime is 138654209. The reversal of 138654192 is 291456831.

It is a self number, because there is not a number n which added to its sum of digits gives 138654192.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1444267 + ... + 1444362.

It is an arithmetic number, because the mean of its divisors is an integer number (17909506).

Almost surely, 2^138654192 is an apocalyptic number.

138654192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

138654192 is an abundant number, since it is smaller than the sum of its proper divisors (219535928).

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

138654192 is a wasteful number, since it uses less digits than its factorization.

138654192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888640 (or 2888634 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 138654192 is about 11775.1514639940. The cubic root of 138654192 is about 517.5802167420.

The spelling of 138654192 in words is "one hundred thirty-eight million, six hundred fifty-four thousand, one hundred ninety-two".