120512780 has 48 divisors (see below), whose sum is σ = 258461280. Its totient is φ = 47190528.

The previous prime is 120512771. The next prime is 120512809. The reversal of 120512780 is 87215021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 287411 + ... + 287829.

It is an arithmetic number, because the mean of its divisors is an integer number (5384610).

Almost surely, 2^120512780 is an apocalyptic number.

120512780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120512780 is an abundant number, since it is smaller than the sum of its proper divisors (137948500).

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

120512780 is a wasteful number, since it uses less digits than its factorization.

120512780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698 (or 696 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 120512780 is about 10977.8312976653. The cubic root of 120512780 is about 493.9439855188.

The spelling of 120512780 in words is "one hundred twenty million, five hundred twelve thousand, seven hundred eighty".