120928961 has 2 divisors, whose sum is σ = 120928962. Its totient is φ = 120928960.

The previous prime is 120928949. The next prime is 120929033. The reversal of 120928961 is 169829021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64963600 + 55965361 = 8060^2 + 7481^2 .

It is a cyclic number.

It is not a de Polignac number, because 120928961 - 2⁶ = 120928897 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120928931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60464480 + 60464481.

It is an arithmetic number, because the mean of its divisors is an integer number (60464481).

Almost surely, 2^120928961 is an apocalyptic number.

It is an amenable number.

120928961 is a deficient number, since it is larger than the sum of its proper divisors (1).

120928961 is an equidigital number, since it uses as much as digits as its factorization.

120928961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 120928961 is about 10996.7704804638. The cubic root of 120928961 is about 494.5119305810.

The spelling of 120928961 in words is "one hundred twenty million, nine hundred twenty-eight thousand, nine hundred sixty-one".