139502852 has 24 divisors (see below), whose sum is σ = 256150272. Its totient is φ = 66391200.

The previous prime is 139502851. The next prime is 139502893. The reversal of 139502852 is 258205931.

It is a super-2 number, since 2×139502852² = 38922091432267808, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (139502851) 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, 1658 + ... + 16785.

It is an arithmetic number, because the mean of its divisors is an integer number (10672928).

Almost surely, 2^139502852 is an apocalyptic number.

It is an amenable number.

139502852 is a deficient number, since it is larger than the sum of its proper divisors (116647420).

139502852 is a wasteful number, since it uses less digits than its factorization.

139502852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18539 (or 18537 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 139502852 is about 11811.1325451880. The cubic root of 139502852 is about 518.6340531109.

The spelling of 139502852 in words is "one hundred thirty-nine million, five hundred two thousand, eight hundred fifty-two".