120505057 has 2 divisors, whose sum is σ = 120505058. Its totient is φ = 120505056.

The previous prime is 120505051. The next prime is 120505069. The reversal of 120505057 is 750505021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109851361 + 10653696 = 10481^2 + 3264^2 .

It is a cyclic number.

It is not a de Polignac number, because 120505057 - 2⁷ = 120504929 is a prime.

It is not a weakly prime, because it can be changed into another prime (120505051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60252528 + 60252529.

It is an arithmetic number, because the mean of its divisors is an integer number (60252529).

Almost surely, 2^120505057 is an apocalyptic number.

It is an amenable number.

120505057 is a deficient number, since it is larger than the sum of its proper divisors (1).

120505057 is an equidigital number, since it uses as much as digits as its factorization.

120505057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 120505057 is about 10977.4795376717. The cubic root of 120505057 is about 493.9334339107.

The spelling of 120505057 in words is "one hundred twenty million, five hundred five thousand, fifty-seven".