139523084 has 12 divisors (see below), whose sum is σ = 245000784. Its totient is φ = 69522864.

The previous prime is 139523081. The next prime is 139523149. The reversal of 139523084 is 480325931.

It is not an unprimeable number, because it can be changed into a prime (139523081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58352 + ... + 60695.

It is an arithmetic number, because the mean of its divisors is an integer number (20416732).

Almost surely, 2^139523084 is an apocalyptic number.

It is an amenable number.

139523084 is a deficient number, since it is larger than the sum of its proper divisors (105477700).

139523084 is a wasteful number, since it uses less digits than its factorization.

139523084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119344 (or 119342 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 139523084 is about 11811.9889942380. The cubic root of 139523084 is about 518.6591242756.

The spelling of 139523084 in words is "one hundred thirty-nine million, five hundred twenty-three thousand, eighty-four".