120121959 has 8 divisors (see below), whose sum is σ = 160493440. Its totient is φ = 79915896.

The previous prime is 120121957. The next prime is 120121997. The reversal of 120121959 is 959121021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120121959 - 2¹ = 120121957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121951) 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, 39649 + ... + 42570.

It is an arithmetic number, because the mean of its divisors is an integer number (20061680).

Almost surely, 2^120121959 is an apocalyptic number.

120121959 is a deficient number, since it is larger than the sum of its proper divisors (40371481).

120121959 is an equidigital number, since it uses as much as digits as its factorization.

120121959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82709.

The product of its (nonzero) digits is 1620, while the sum is 30.

The square root of 120121959 is about 10960.0163777250. The cubic root of 120121959 is about 493.4094564884.

The spelling of 120121959 in words is "one hundred twenty million, one hundred twenty-one thousand, nine hundred fifty-nine".