138769125 has 32 divisors (see below), whose sum is σ = 251911296. Its totient is φ = 67280000.

The previous prime is 138769093. The next prime is 138769153. The reversal of 138769125 is 521967831.

It is not a de Polignac number, because 138769125 - 2⁵ = 138769093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12696 + ... + 20945.

It is an arithmetic number, because the mean of its divisors is an integer number (7872228).

Almost surely, 2^138769125 is an apocalyptic number.

138769125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138769125 is a deficient number, since it is larger than the sum of its proper divisors (113142171).

138769125 is a wasteful number, since it uses less digits than its factorization.

138769125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33670 (or 33660 counting only the distinct ones).

The product of its digits is 90720, while the sum is 42.

The square root of 138769125 is about 11780.0307724556. The cubic root of 138769125 is about 517.7231878202.

The spelling of 138769125 in words is "one hundred thirty-eight million, seven hundred sixty-nine thousand, one hundred twenty-five".