315613271 has 2 divisors, whose sum is σ = 315613272. Its totient is φ = 315613270.

The previous prime is 315613253. The next prime is 315613283. The reversal of 315613271 is 172316513.

It is a strong prime.

It is an emirp because it is prime and its reverse (172316513) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 315613271 - 2¹⁴ = 315596887 is a prime.

It is a super-2 number, since 2×315613271² = 199223473662638882, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (315613231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157806635 + 157806636.

It is an arithmetic number, because the mean of its divisors is an integer number (157806636).

Almost surely, 2^315613271 is an apocalyptic number.

315613271 is a deficient number, since it is larger than the sum of its proper divisors (1).

315613271 is an equidigital number, since it uses as much as digits as its factorization.

315613271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 315613271 is about 17765.5079015490. The cubic root of 315613271 is about 680.8504864456.

Adding to 315613271 its reverse (172316513), we get a palindrome (487929784).

The spelling of 315613271 in words is "three hundred fifteen million, six hundred thirteen thousand, two hundred seventy-one".