139648568 has 16 divisors (see below), whose sum is σ = 262023000. Its totient is φ = 69775776.

The previous prime is 139648567. The next prime is 139648577. The reversal of 139648568 is 865846931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139648567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8123 + ... + 18581.

Almost surely, 2^139648568 is an apocalyptic number.

It is an amenable number.

139648568 is a deficient number, since it is larger than the sum of its proper divisors (122374432).

139648568 is a wasteful number, since it uses less digits than its factorization.

139648568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134 (or 12130 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 50.

The square root of 139648568 is about 11817.2995223105. The cubic root of 139648568 is about 518.8145678957.

The spelling of 139648568 in words is "one hundred thirty-nine million, six hundred forty-eight thousand, five hundred sixty-eight".