318314217 has 8 divisors (see below), whose sum is σ = 457066624. Its totient is φ = 195885648.

The previous prime is 318314209. The next prime is 318314257. The reversal of 318314217 is 712413813.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 318314217 - 2³ = 318314209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318314207) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4080913 + ... + 4080990.

It is an arithmetic number, because the mean of its divisors is an integer number (57133328).

Almost surely, 2^318314217 is an apocalyptic number.

It is an amenable number.

318314217 is a deficient number, since it is larger than the sum of its proper divisors (138752407).

318314217 is a wasteful number, since it uses less digits than its factorization.

318314217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8161919.

The product of its digits is 4032, while the sum is 30.

The square root of 318314217 is about 17841.3625320489. The cubic root of 318314217 is about 682.7871598173.

The spelling of 318314217 in words is "three hundred eighteen million, three hundred fourteen thousand, two hundred seventeen".