138353372 has 48 divisors (see below), whose sum is σ = 263424000. Its totient is φ = 63391680.

The previous prime is 138353329. The next prime is 138353377. The reversal of 138353372 is 273353831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138353377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396254 + ... + 396602.

It is an arithmetic number, because the mean of its divisors is an integer number (5488000).

Almost surely, 2^138353372 is an apocalyptic number.

It is an amenable number.

138353372 is a deficient number, since it is larger than the sum of its proper divisors (125070628).

138353372 is a wasteful number, since it uses less digits than its factorization.

138353372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546 (or 544 counting only the distinct ones).

The product of its digits is 45360, while the sum is 35.

The square root of 138353372 is about 11762.3710194841. The cubic root of 138353372 is about 517.2056368511.

The spelling of 138353372 in words is "one hundred thirty-eight million, three hundred fifty-three thousand, three hundred seventy-two".