120989641 has 2 divisors, whose sum is σ = 120989642. Its totient is φ = 120989640.

The previous prime is 120989633. The next prime is 120989669. The reversal of 120989641 is 146989021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 88454025 + 32535616 = 9405^2 + 5704^2 .

It is a cyclic number.

It is not a de Polignac number, because 120989641 - 2³ = 120989633 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 120989594 and 120989603.

It is not a weakly prime, because it can be changed into another prime (120989611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60494820 + 60494821.

It is an arithmetic number, because the mean of its divisors is an integer number (60494821).

Almost surely, 2^120989641 is an apocalyptic number.

It is an amenable number.

120989641 is a deficient number, since it is larger than the sum of its proper divisors (1).

120989641 is an equidigital number, since it uses as much as digits as its factorization.

120989641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 120989641 is about 10999.5291262854. The cubic root of 120989641 is about 494.5946291783.

The spelling of 120989641 in words is "one hundred twenty million, nine hundred eighty-nine thousand, six hundred forty-one".