316640057 has 8 divisors (see below), whose sum is σ = 335340096. Its totient is φ = 298351152.

The previous prime is 316640053. The next prime is 316640087. The reversal of 316640057 is 750046613.

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 316640057 - 2² = 316640053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (316640053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101198 + ... + 104279.

It is an arithmetic number, because the mean of its divisors is an integer number (41917512).

Almost surely, 2^316640057 is an apocalyptic number.

It is an amenable number.

316640057 is a deficient number, since it is larger than the sum of its proper divisors (18700039).

316640057 is a wasteful number, since it uses less digits than its factorization.

316640057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205567.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 316640057 is about 17794.3827372573. The cubic root of 316640057 is about 681.5880251403.

The spelling of 316640057 in words is "three hundred sixteen million, six hundred forty thousand, fifty-seven".