139294522 has 16 divisors (see below), whose sum is σ = 213175872. Its totient is φ = 68250240.

The previous prime is 139294487. The next prime is 139294559. The reversal of 139294522 is 225492931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16497 + ... + 23467.

It is an arithmetic number, because the mean of its divisors is an integer number (13323492).

Almost surely, 2^139294522 is an apocalyptic number.

139294522 is a deficient number, since it is larger than the sum of its proper divisors (73881350).

139294522 is a wasteful number, since it uses less digits than its factorization.

139294522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7173.

The product of its digits is 38880, while the sum is 37.

The square root of 139294522 is about 11802.3100281258. The cubic root of 139294522 is about 518.3757528676.

The spelling of 139294522 in words is "one hundred thirty-nine million, two hundred ninety-four thousand, five hundred twenty-two".