120951780 has 24 divisors (see below), whose sum is σ = 338665152. Its totient is φ = 32253792.

The previous prime is 120951769. The next prime is 120951781. The reversal of 120951780 is 87159021.

It is not an unprimeable number, because it can be changed into a prime (120951781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007872 + ... + 1007991.

It is an arithmetic number, because the mean of its divisors is an integer number (14111048).

Almost surely, 2^120951780 is an apocalyptic number.

120951780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120951780 is an abundant number, since it is smaller than the sum of its proper divisors (217713372).

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

120951780 is a wasteful number, since it uses less digits than its factorization.

120951780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015875 (or 2015873 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 120951780 is about 10997.8079634080. The cubic root of 120951780 is about 494.5430330231.

The spelling of 120951780 in words is "one hundred twenty million, nine hundred fifty-one thousand, seven hundred eighty".