138537325 has 12 divisors (see below), whose sum is σ = 172607008. Its totient is φ = 110300400.

The previous prime is 138537313. The next prime is 138537331. The reversal of 138537325 is 523735831.

It is not a de Polignac number, because 138537325 - 2⁷ = 138537197 is a prime.

It is a Duffinian number.

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 11 ways as a sum of consecutive naturals, for example, 7857 + ... + 18406.

Almost surely, 2^138537325 is an apocalyptic number.

It is an amenable number.

138537325 is a deficient number, since it is larger than the sum of its proper divisors (34069683).

138537325 is a wasteful number, since it uses less digits than its factorization.

138537325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26484 (or 26479 counting only the distinct ones).

The product of its digits is 75600, while the sum is 37.

The square root of 138537325 is about 11770.1879764089. The cubic root of 138537325 is about 517.4347588256.

The spelling of 138537325 in words is "one hundred thirty-eight million, five hundred thirty-seven thousand, three hundred twenty-five".