120557051 has 2 divisors, whose sum is σ = 120557052. Its totient is φ = 120557050.

The previous prime is 120557039. The next prime is 120557069. The reversal of 120557051 is 150755021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120557051 - 2⁶ = 120556987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120557051.

It is not a weakly prime, because it can be changed into another prime (120557551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60278525 + 60278526.

It is an arithmetic number, because the mean of its divisors is an integer number (60278526).

Almost surely, 2^120557051 is an apocalyptic number.

120557051 is a deficient number, since it is larger than the sum of its proper divisors (1).

120557051 is an equidigital number, since it uses as much as digits as its factorization.

120557051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1750, while the sum is 26.

The square root of 120557051 is about 10979.8474943872. The cubic root of 120557051 is about 494.0044624160.

The spelling of 120557051 in words is "one hundred twenty million, five hundred fifty-seven thousand, fifty-one".