120774657 has 4 divisors (see below), whose sum is σ = 161032880. Its totient is φ = 80516436.

The previous prime is 120774653. The next prime is 120774671. The reversal of 120774657 is 756477021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 120774657 - 2² = 120774653 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120774653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20129107 + ... + 20129112.

It is an arithmetic number, because the mean of its divisors is an integer number (40258220).

Almost surely, 2^120774657 is an apocalyptic number.

It is an amenable number.

120774657 is a deficient number, since it is larger than the sum of its proper divisors (40258223).

120774657 is an equidigital number, since it uses as much as digits as its factorization.

120774657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40258222.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 120774657 is about 10989.7523629971. The cubic root of 120774657 is about 494.3015104958.

The spelling of 120774657 in words is "one hundred twenty million, seven hundred seventy-four thousand, six hundred fifty-seven".