120785057 has 8 divisors (see below), whose sum is σ = 127076712. Its totient is φ = 114652800.

The previous prime is 120785053. The next prime is 120785081. The reversal of 120785057 is 750587021.

It can be written as a sum of positive squares in 4 ways, for example, as 3474496 + 117310561 = 1864^2 + 10831^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120785057 - 2² = 120785053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120785053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38294 + ... + 41327.

It is an arithmetic number, because the mean of its divisors is an integer number (15884589).

Almost surely, 2^120785057 is an apocalyptic number.

It is an amenable number.

120785057 is a deficient number, since it is larger than the sum of its proper divisors (6291655).

120785057 is an equidigital number, since it uses as much as digits as its factorization.

120785057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79699.

The product of its (nonzero) digits is 19600, while the sum is 35.

The square root of 120785057 is about 10990.2255208890. The cubic root of 120785057 is about 494.3156983182.

The spelling of 120785057 in words is "one hundred twenty million, seven hundred eighty-five thousand, fifty-seven".