120768657 has 16 divisors (see below), whose sum is σ = 167287680. Its totient is φ = 77436800.

The previous prime is 120768649. The next prime is 120768667. The reversal of 120768657 is 756867021.

It is a cyclic number.

It is not a de Polignac number, because 120768657 - 2³ = 120768649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120768647) 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, 1819 + ... + 15647.

It is an arithmetic number, because the mean of its divisors is an integer number (10455480).

Almost surely, 2^120768657 is an apocalyptic number.

It is an amenable number.

120768657 is a deficient number, since it is larger than the sum of its proper divisors (46519023).

120768657 is a wasteful number, since it uses less digits than its factorization.

120768657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13944.

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 120768657 is about 10989.4793780233. The cubic root of 120768657 is about 494.2933248432.

The spelling of 120768657 in words is "one hundred twenty million, seven hundred sixty-eight thousand, six hundred fifty-seven".