138133039424 has 42 divisors (see below), whose sum is σ = 283592614170. Its totient is φ = 66677185792.

The previous prime is 138133039381. The next prime is 138133039459. The reversal of 138133039424 is 424930331831.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 119080206400 + 19052833024 = 345080^2 + 138032^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16007399 + ... + 16016025.

Almost surely, 2^138133039424 is an apocalyptic number.

It is an amenable number.

138133039424 is an abundant number, since it is smaller than the sum of its proper divisors (145459574746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138133039424 is an frugal number, since it uses more digits than its factorization.

138133039424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17295 (or 8658 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 41.

The spelling of 138133039424 in words is "one hundred thirty-eight billion, one hundred thirty-three million, thirty-nine thousand, four hundred twenty-four".