139382052 has 24 divisors (see below), whose sum is σ = 328267296. Its totient is φ = 46026048.

The previous prime is 139382029. The next prime is 139382053. The reversal of 139382052 is 250283931.

It is not an unprimeable number, because it can be changed into a prime (139382053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52993 + ... + 55560.

It is an arithmetic number, because the mean of its divisors is an integer number (13677804).

Almost surely, 2^139382052 is an apocalyptic number.

139382052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139382052 is an abundant number, since it is smaller than the sum of its proper divisors (188885244).

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

139382052 is a wasteful number, since it uses less digits than its factorization.

139382052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108667 (or 108665 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 139382052 is about 11806.0176181471. The cubic root of 139382052 is about 518.4843092520.

The spelling of 139382052 in words is "one hundred thirty-nine million, three hundred eighty-two thousand, fifty-two".