120556799 has 32 divisors (see below), whose sum is σ = 143216640. Its totient is φ = 100396800.

The previous prime is 120556781. The next prime is 120556817. The reversal of 120556799 is 997655021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120556781) and next prime (120556817).

It is a cyclic number.

It is not a de Polignac number, because 120556799 - 2⁸ = 120556543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120556199) 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 in 31 ways as a sum of consecutive naturals, for example, 721814 + ... + 721980.

It is an arithmetic number, because the mean of its divisors is an integer number (4475520).

Almost surely, 2^120556799 is an apocalyptic number.

120556799 is a deficient number, since it is larger than the sum of its proper divisors (22659841).

120556799 is a wasteful number, since it uses less digits than its factorization.

120556799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311.

The product of its (nonzero) digits is 170100, while the sum is 44.

The square root of 120556799 is about 10979.8360188119. The cubic root of 120556799 is about 494.0041182105.

The spelling of 120556799 in words is "one hundred twenty million, five hundred fifty-six thousand, seven hundred ninety-nine".