318016417 has 6 divisors (see below), whose sum is σ = 319123238. Its totient is φ = 316911744.

The previous prime is 318016333. The next prime is 318016421. The reversal of 318016417 is 714610813.

It can be written as a sum of positive squares in 3 ways, for example, as 126360081 + 191656336 = 11241^2 + 13844^2 .

It is not a de Polignac number, because 318016417 - 2⁷ = 318016289 is a prime.

It is a super-2 number, since 2×318016417² = 202268882963035778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (318016427) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 370653 + ... + 371509.

Almost surely, 2^318016417 is an apocalyptic number.

It is an amenable number.

318016417 is a deficient number, since it is larger than the sum of its proper divisors (1106821).

318016417 is an frugal number, since it uses more digits than its factorization.

318016417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147 (or 1290 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 318016417 is about 17833.0148040089. The cubic root of 318016417 is about 682.5741653941.

The spelling of 318016417 in words is "three hundred eighteen million, sixteen thousand, four hundred seventeen".