120838957 has 2 divisors, whose sum is σ = 120838958. Its totient is φ = 120838956.

The previous prime is 120838937. The next prime is 120838973. The reversal of 120838957 is 759838021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104468841 + 16370116 = 10221^2 + 4046^2 .

It is a cyclic number.

It is not a de Polignac number, because 120838957 - 2⁷ = 120838829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120838937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60419478 + 60419479.

It is an arithmetic number, because the mean of its divisors is an integer number (60419479).

Almost surely, 2^120838957 is an apocalyptic number.

It is an amenable number.

120838957 is a deficient number, since it is larger than the sum of its proper divisors (1).

120838957 is an equidigital number, since it uses as much as digits as its factorization.

120838957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 120838957 is about 10992.6774263598. The cubic root of 120838957 is about 494.3892163912.

The spelling of 120838957 in words is "one hundred twenty million, eight hundred thirty-eight thousand, nine hundred fifty-seven".