120857618 has 12 divisors (see below), whose sum is σ = 210884382. Its totient is φ = 51796080.

The previous prime is 120857609. The next prime is 120857621. The reversal of 120857618 is 816758021.

It can be written as a sum of positive squares in only one way, i.e., 117570649 + 3286969 = 10843^2 + 1813^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 616523 + ... + 616718.

Almost surely, 2^120857618 is an apocalyptic number.

120857618 is a deficient number, since it is larger than the sum of its proper divisors (90026764).

120857618 is a wasteful number, since it uses less digits than its factorization.

120857618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233257 (or 1233250 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 120857618 is about 10993.5261858969. The cubic root of 120857618 is about 494.4146643718.

The spelling of 120857618 in words is "one hundred twenty million, eight hundred fifty-seven thousand, six hundred eighteen".