138892925 has 12 divisors (see below), whose sum is σ = 173902560. Its totient is φ = 110033520.

The previous prime is 138892921. The next prime is 138892951. The reversal of 138892925 is 529298831.

It is not a de Polignac number, because 138892925 - 2² = 138892921 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138892925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138892921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24395 + ... + 29544.

It is an arithmetic number, because the mean of its divisors is an integer number (14491880).

Almost surely, 2^138892925 is an apocalyptic number.

It is an amenable number.

138892925 is a deficient number, since it is larger than the sum of its proper divisors (35009635).

138892925 is a wasteful number, since it uses less digits than its factorization.

138892925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54052 (or 54047 counting only the distinct ones).

The product of its digits is 311040, while the sum is 47.

The square root of 138892925 is about 11785.2842562239. The cubic root of 138892925 is about 517.8771007313.

The spelling of 138892925 in words is "one hundred thirty-eight million, eight hundred ninety-two thousand, nine hundred twenty-five".