139798056 has 16 divisors (see below), whose sum is σ = 349495200. Its totient is φ = 46599344.

The previous prime is 139798051. The next prime is 139798073. The reversal of 139798056 is 650897931.

It is a super-2 number, since 2×139798056² = 39086992922758272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139797996 and 139798014.

It is not an unprimeable number, because it can be changed into a prime (139798051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2912436 + ... + 2912483.

It is an arithmetic number, because the mean of its divisors is an integer number (21843450).

Almost surely, 2^139798056 is an apocalyptic number.

It is an amenable number.

139798056 is an abundant number, since it is smaller than the sum of its proper divisors (209697144).

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

139798056 is a wasteful number, since it uses less digits than its factorization.

139798056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824928 (or 5824924 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 139798056 is about 11823.6227950658. The cubic root of 139798056 is about 518.9996250382. Note that the first 3 decimals are identical.

The spelling of 139798056 in words is "one hundred thirty-nine million, seven hundred ninety-eight thousand, fifty-six".