120989124 has 18 divisors (see below), whose sum is σ = 305833710. Its totient is φ = 40329696.

The previous prime is 120989123. The next prime is 120989137. The reversal of 120989124 is 421989021.

It can be written as a sum of positive squares in only one way, i.e., 70862724 + 50126400 = 8418^2 + 7080^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3360809 = 120989124 / (1 + 2 + 0 + 9 + 8 + 9 + 1 + 2 + 4).

It is not an unprimeable number, because it can be changed into a prime (120989123) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1680369 + ... + 1680440.

Almost surely, 2^120989124 is an apocalyptic number.

It is an amenable number.

120989124 is an abundant number, since it is smaller than the sum of its proper divisors (184844586).

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

120989124 is a wasteful number, since it uses less digits than its factorization.

120989124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3360819 (or 3360814 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 120989124 is about 10999.5056252543. The cubic root of 120989124 is about 494.5939246943.

The spelling of 120989124 in words is "one hundred twenty million, nine hundred eighty-nine thousand, one hundred twenty-four".