138532376 has 8 divisors (see below), whose sum is σ = 259748220. Its totient is φ = 69266184.

The previous prime is 138532367. The next prime is 138532411. The reversal of 138532376 is 673235831.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8658266 + ... + 8658281.

Almost surely, 2^138532376 is an apocalyptic number.

It is an amenable number.

138532376 is a deficient number, since it is larger than the sum of its proper divisors (121215844).

138532376 is a wasteful number, since it uses less digits than its factorization.

138532376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17316553 (or 17316549 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 138532376 is about 11769.9777399959. The cubic root of 138532376 is about 517.4285972728.

The spelling of 138532376 in words is "one hundred thirty-eight million, five hundred thirty-two thousand, three hundred seventy-six".