120197857 has 16 divisors (see below), whose sum is σ = 139437760. Its totient is φ = 102658752.

The previous prime is 120197851. The next prime is 120197863. The reversal of 120197857 is 758791021.

It is an interprime number because it is at equal distance from previous prime (120197851) and next prime (120197863).

It is a cyclic number.

It is not a de Polignac number, because 120197857 - 2³ = 120197849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120197851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963 + ... + 16279.

It is an arithmetic number, because the mean of its divisors is an integer number (8714860).

Almost surely, 2^120197857 is an apocalyptic number.

It is an amenable number.

120197857 is a deficient number, since it is larger than the sum of its proper divisors (19239903).

120197857 is a wasteful number, since it uses less digits than its factorization.

120197857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11392.

The product of its (nonzero) digits is 35280, while the sum is 40.

The square root of 120197857 is about 10963.4783257869. The cubic root of 120197857 is about 493.5133534134.

The spelling of 120197857 in words is "one hundred twenty million, one hundred ninety-seven thousand, eight hundred fifty-seven".