138797516 has 48 divisors (see below), whose sum is σ = 286530048. Its totient is φ = 57998400.

The previous prime is 138797467. The next prime is 138797531. The reversal of 138797516 is 615797831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246251 + ... + 246813.

It is an arithmetic number, because the mean of its divisors is an integer number (5969376).

Almost surely, 2^138797516 is an apocalyptic number.

It is an amenable number.

138797516 is an abundant number, since it is smaller than the sum of its proper divisors (147732532).

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

138797516 is a wasteful number, since it uses less digits than its factorization.

138797516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022 (or 1020 counting only the distinct ones).

The product of its digits is 317520, while the sum is 47.

The square root of 138797516 is about 11781.2357586121. The cubic root of 138797516 is about 517.7584926877.

The spelling of 138797516 in words is "one hundred thirty-eight million, seven hundred ninety-seven thousand, five hundred sixteen".