138290983252 has 12 divisors (see below), whose sum is σ = 242011839636. Its totient is φ = 69144743360.

The previous prime is 138290983247. The next prime is 138290983267. The reversal of 138290983252 is 252389092831.

It can be written as a sum of positive squares in 2 ways, for example, as 92535206416 + 45755776836 = 304196^2 + 213906^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138290983252.

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, 562368 + ... + 769960.

It is an arithmetic number, because the mean of its divisors is an integer number (20167653303).

Almost surely, 2^138290983252 is an apocalyptic number.

It is an amenable number.

138290983252 is a deficient number, since it is larger than the sum of its proper divisors (103720856384).

138290983252 is a wasteful number, since it uses less digits than its factorization.

138290983252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374138 (or 374136 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 138290983252 in words is "one hundred thirty-eight billion, two hundred ninety million, nine hundred eighty-three thousand, two hundred fifty-two".