139995052 has 12 divisors (see below), whose sum is σ = 245337120. Its totient is φ = 69898736.

The previous prime is 139995049. The next prime is 139995067. The reversal of 139995052 is 250599931.

139995052 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139995052² = 39197229168965408, which contains 22 as substring.

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, 21463 + ... + 27214.

It is an arithmetic number, because the mean of its divisors is an integer number (20444760).

Almost surely, 2^139995052 is an apocalyptic number.

It is an amenable number.

139995052 is a deficient number, since it is larger than the sum of its proper divisors (105342068).

139995052 is a wasteful number, since it uses less digits than its factorization.

139995052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49400 (or 49398 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 43.

The square root of 139995052 is about 11831.9504731891. The cubic root of 139995052 is about 519.2432928605.

The spelling of 139995052 in words is "one hundred thirty-nine million, nine hundred ninety-five thousand, fifty-two".