138387352 has 16 divisors (see below), whose sum is σ = 261459000. Its totient is φ = 68664960.

The previous prime is 138387349. The next prime is 138387407. The reversal of 138387352 is 253783831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64977 + ... + 67072.

Almost surely, 2^138387352 is an apocalyptic number.

It is an amenable number.

138387352 is a deficient number, since it is larger than the sum of its proper divisors (123071648).

138387352 is a wasteful number, since it uses less digits than its factorization.

138387352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132186 (or 132182 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 138387352 is about 11763.8153674733. The cubic root of 138387352 is about 517.2479757998.

The spelling of 138387352 in words is "one hundred thirty-eight million, three hundred eighty-seven thousand, three hundred fifty-two".