120915953 has 2 divisors, whose sum is σ = 120915954. Its totient is φ = 120915952.

The previous prime is 120915901. The next prime is 120915973. The reversal of 120915953 is 359519021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102657424 + 18258529 = 10132^2 + 4273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120915953 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (120915973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60457976 + 60457977.

It is an arithmetic number, because the mean of its divisors is an integer number (60457977).

Almost surely, 2^120915953 is an apocalyptic number.

It is an amenable number.

120915953 is a deficient number, since it is larger than the sum of its proper divisors (1).

120915953 is an equidigital number, since it uses as much as digits as its factorization.

120915953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12150, while the sum is 35.

The square root of 120915953 is about 10996.1790181863. The cubic root of 120915953 is about 494.4941988433.

The spelling of 120915953 in words is "one hundred twenty million, nine hundred fifteen thousand, nine hundred fifty-three".