120519972 has 36 divisors (see below), whose sum is σ = 306196800. Its totient is φ = 39969072.

The previous prime is 120519961. The next prime is 120520009. The reversal of 120519972 is 279915021.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1248 + ... + 15575.

Almost surely, 2^120519972 is an apocalyptic number.

120519972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120519972 is an abundant number, since it is smaller than the sum of its proper divisors (185676828).

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

120519972 is a wasteful number, since it uses less digits than its factorization.

120519972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17032 (or 17027 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 36.

The square root of 120519972 is about 10978.1588620315. The cubic root of 120519972 is about 493.9538112388.

The spelling of 120519972 in words is "one hundred twenty million, five hundred nineteen thousand, nine hundred seventy-two".