120139056 has 30 divisors (see below), whose sum is σ = 336222900. Its totient is φ = 40046304.

The previous prime is 120139039. The next prime is 120139067. The reversal of 120139056 is 650931021.

It is a super-2 number, since 2×120139056² = 28866785553142272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 417006 + ... + 417293.

It is an arithmetic number, because the mean of its divisors is an integer number (11207430).

Almost surely, 2^120139056 is an apocalyptic number.

120139056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

120139056 is an abundant number, since it is smaller than the sum of its proper divisors (216083844).

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

120139056 is a wasteful number, since it uses less digits than its factorization.

120139056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834313 (or 834304 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 120139056 is about 10960.7963214358. The cubic root of 120139056 is about 493.4328644242.

The spelling of 120139056 in words is "one hundred twenty million, one hundred thirty-nine thousand, fifty-six".