314215631 has 2 divisors, whose sum is σ = 314215632. Its totient is φ = 314215630.

The previous prime is 314215619. The next prime is 314215661. The reversal of 314215631 is 136512413.

It is a weak prime.

It is an emirp because it is prime and its reverse (136512413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-314215631 is a prime.

It is a super-2 number, since 2×314215631² = 197462925529456322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 314215631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314215661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157107815 + 157107816.

It is an arithmetic number, because the mean of its divisors is an integer number (157107816).

Almost surely, 2^314215631 is an apocalyptic number.

314215631 is a deficient number, since it is larger than the sum of its proper divisors (1).

314215631 is an equidigital number, since it uses as much as digits as its factorization.

314215631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 314215631 is about 17726.1284831178. The cubic root of 314215631 is about 679.8439888634.

The spelling of 314215631 in words is "three hundred fourteen million, two hundred fifteen thousand, six hundred thirty-one".