120517872 has 20 divisors (see below), whose sum is σ = 311337960. Its totient is φ = 40172608.

The previous prime is 120517867. The next prime is 120517889. The reversal of 120517872 is 278715021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255347 + ... + 1255442.

It is an arithmetic number, because the mean of its divisors is an integer number (15566898).

Almost surely, 2^120517872 is an apocalyptic number.

120517872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120517872 is an abundant number, since it is smaller than the sum of its proper divisors (190820088).

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

120517872 is a wasteful number, since it uses less digits than its factorization.

120517872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510800 (or 2510794 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 120517872 is about 10978.0632171618. The cubic root of 120517872 is about 493.9509422564.

The spelling of 120517872 in words is "one hundred twenty million, five hundred seventeen thousand, eight hundred seventy-two".