138797165 has 24 divisors (see below), whose sum is σ = 182619360. Its totient is φ = 101210304.

The previous prime is 138797093. The next prime is 138797173. The reversal of 138797165 is 561797831.

It is not a de Polignac number, because 138797165 - 2⁸ = 138796909 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69146 + ... + 71124.

It is an arithmetic number, because the mean of its divisors is an integer number (7609140).

Almost surely, 2^138797165 is an apocalyptic number.

It is an amenable number.

138797165 is a deficient number, since it is larger than the sum of its proper divisors (43822195).

138797165 is a wasteful number, since it uses less digits than its factorization.

138797165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2093 (or 2080 counting only the distinct ones).

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

The square root of 138797165 is about 11781.2208620329. The cubic root of 138797165 is about 517.7580562405.

The spelling of 138797165 in words is "one hundred thirty-eight million, seven hundred ninety-seven thousand, one hundred sixty-five".