138332625 has 32 divisors (see below), whose sum is σ = 231154560. Its totient is φ = 73467200.

The previous prime is 138332561. The next prime is 138332627. The reversal of 138332625 is 526233831.

138332625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 138332625 - 2⁶ = 138332561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138332627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109246 + ... + 110504.

It is an arithmetic number, because the mean of its divisors is an integer number (7223580).

Almost surely, 2^138332625 is an apocalyptic number.

138332625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

138332625 is a deficient number, since it is larger than the sum of its proper divisors (92821935).

138332625 is a wasteful number, since it uses less digits than its factorization.

138332625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1570 (or 1560 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 138332625 is about 11761.4890638898. The cubic root of 138332625 is about 517.1797827607.

The spelling of 138332625 in words is "one hundred thirty-eight million, three hundred thirty-two thousand, six hundred twenty-five".