139793568 has 48 divisors (see below), whose sum is σ = 367680096. Its totient is φ = 46506240.

The previous prime is 139793519. The next prime is 139793569. The reversal of 139793568 is 865397931.

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 139793568.

It is not an unprimeable number, because it can be changed into a prime (139793569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62355 + ... + 64557.

It is an arithmetic number, because the mean of its divisors is an integer number (7660002).

Almost surely, 2^139793568 is an apocalyptic number.

It is an amenable number.

139793568 is an abundant number, since it is smaller than the sum of its proper divisors (227886528).

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

139793568 is a wasteful number, since it uses less digits than its factorization.

139793568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877 (or 2869 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 51.

The square root of 139793568 is about 11823.4330039968. The cubic root of 139793568 is about 518.9940710859.

The spelling of 139793568 in words is "one hundred thirty-nine million, seven hundred ninety-three thousand, five hundred sixty-eight".