139793648 has 40 divisors (see below), whose sum is σ = 277334928. Its totient is φ = 68237312.

The previous prime is 139793623. The next prime is 139793653. The reversal of 139793648 is 846397931.

It is a super-2 number, since 2×139793648² = 39084528042295808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139793596 and 139793605.

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, 299111 + ... + 299577.

Almost surely, 2^139793648 is an apocalyptic number.

It is an amenable number.

139793648 is a deficient number, since it is larger than the sum of its proper divisors (137541280).

139793648 is a wasteful number, since it uses less digits than its factorization.

139793648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 875 counting only the distinct ones).

The product of its digits is 979776, while the sum is 50.

The square root of 139793648 is about 11823.4363871084. The cubic root of 139793648 is about 518.9941700878.

The spelling of 139793648 in words is "one hundred thirty-nine million, seven hundred ninety-three thousand, six hundred forty-eight".