139648056 has 32 divisors (see below), whose sum is σ = 360384000. Its totient is φ = 45047520.

The previous prime is 139648049. The next prime is 139648097. The reversal of 139648056 is 650846931.

It is a junction number, because it is equal to n+sod(n) for n = 139647999 and 139648017.

It is a congruent number.

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, 93106 + ... + 94593.

It is an arithmetic number, because the mean of its divisors is an integer number (11262000).

Almost surely, 2^139648056 is an apocalyptic number.

It is an amenable number.

139648056 is an abundant number, since it is smaller than the sum of its proper divisors (220735944).

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

139648056 is a wasteful number, since it uses less digits than its factorization.

139648056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187739 (or 187735 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 139648056 is about 11817.2778591349. The cubic root of 139648056 is about 518.8139338436.

The spelling of 139648056 in words is "one hundred thirty-nine million, six hundred forty-eight thousand, fifty-six".