139522836 has 24 divisors (see below), whose sum is σ = 333494784. Its totient is φ = 45373120.

The previous prime is 139522829. The next prime is 139522841. The reversal of 139522836 is 638225931.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 139522794 and 139522803.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141300 + ... + 142283.

It is an arithmetic number, because the mean of its divisors is an integer number (13895616).

Almost surely, 2^139522836 is an apocalyptic number.

It is an amenable number.

139522836 is an abundant number, since it is smaller than the sum of its proper divisors (193971948).

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

139522836 is a wasteful number, since it uses less digits than its factorization.

139522836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283631 (or 283629 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The square root of 139522836 is about 11811.9784964247. The cubic root of 139522836 is about 518.6588169728.

The spelling of 139522836 in words is "one hundred thirty-nine million, five hundred twenty-two thousand, eight hundred thirty-six".