139337730252 has 180 divisors, whose sum is σ = 437396925504. Its totient is φ = 38526425280.

The previous prime is 139337730239. The next prime is 139337730271. The reversal of 139337730252 is 252037733931.

139337730252 is a `hidden beast` number, since 1 + 3 + 9 + 337 + 7 + 302 + 5 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 139337730198 and 139337730207.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 350598 + ... + 633714.

Almost surely, 2^139337730252 is an apocalyptic number.

139337730252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139337730252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218698462752).

139337730252 is an abundant number, since it is smaller than the sum of its proper divisors (298059195252).

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

139337730252 is a wasteful number, since it uses less digits than its factorization.

139337730252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283178 (or 283160 counting only the distinct ones).

The product of its (nonzero) digits is 714420, while the sum is 45.

The spelling of 139337730252 in words is "one hundred thirty-nine billion, three hundred thirty-seven million, seven hundred thirty thousand, two hundred fifty-two".