138527976 has 32 divisors (see below), whose sum is σ = 346700160. Its totient is φ = 46125312.

The previous prime is 138527969. The next prime is 138527981. The reversal of 138527976 is 679725831.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23856 + ... + 29088.

It is an arithmetic number, because the mean of its divisors is an integer number (10834380).

Almost surely, 2^138527976 is an apocalyptic number.

It is an amenable number.

138527976 is an abundant number, since it is smaller than the sum of its proper divisors (208172184).

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

138527976 is a wasteful number, since it uses less digits than its factorization.

138527976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6345 (or 6341 counting only the distinct ones).

The product of its digits is 635040, while the sum is 48.

The square root of 138527976 is about 11769.7908222704. The cubic root of 138527976 is about 517.4231191071.

The spelling of 138527976 in words is "one hundred thirty-eight million, five hundred twenty-seven thousand, nine hundred seventy-six".