138466924 has 6 divisors (see below), whose sum is σ = 242317124. Its totient is φ = 69233460.

The previous prime is 138466919. The next prime is 138466931. The reversal of 138466924 is 429664831.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17308362 + ... + 17308369.

Almost surely, 2^138466924 is an apocalyptic number.

It is an amenable number.

138466924 is a deficient number, since it is larger than the sum of its proper divisors (103850200).

138466924 is a wasteful number, since it uses less digits than its factorization.

138466924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34616735 (or 34616733 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 138466924 is about 11767.1969474467. The cubic root of 138466924 is about 517.3470950936.

The spelling of 138466924 in words is "one hundred thirty-eight million, four hundred sixty-six thousand, nine hundred twenty-four".