139845522 has 32 divisors (see below), whose sum is σ = 284212800. Its totient is φ = 45867008.

The previous prime is 139845481. The next prime is 139845571. The reversal of 139845522 is 225548931.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136729 + ... + 137747.

It is an arithmetic number, because the mean of its divisors is an integer number (8881650).

Almost surely, 2^139845522 is an apocalyptic number.

139845522 is an abundant number, since it is smaller than the sum of its proper divisors (144367278).

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

139845522 is a wasteful number, since it uses less digits than its factorization.

139845522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370.

The product of its digits is 86400, while the sum is 39.

The square root of 139845522 is about 11825.6298775160. The cubic root of 139845522 is about 519.0583574921.

The spelling of 139845522 in words is "one hundred thirty-nine million, eight hundred forty-five thousand, five hundred twenty-two".