138330625 has 20 divisors (see below), whose sum is σ = 180392256. Its totient is φ = 105842000.

The previous prime is 138330617. The next prime is 138330641. The reversal of 138330625 is 526033831.

It is not a de Polignac number, because 138330625 - 2³ = 138330617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9564 + ... + 19186.

Almost surely, 2^138330625 is an apocalyptic number.

It is an amenable number.

138330625 is a deficient number, since it is larger than the sum of its proper divisors (42061631).

138330625 is an frugal number, since it uses more digits than its factorization.

138330625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9666 (or 9651 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 138330625 is about 11761.4040403346. The cubic root of 138330625 is about 517.1772903033.

The spelling of 138330625 in words is "one hundred thirty-eight million, three hundred thirty thousand, six hundred twenty-five".