316306481 has 2 divisors, whose sum is σ = 316306482. Its totient is φ = 316306480.

The previous prime is 316306477. The next prime is 316306483. The reversal of 316306481 is 184603613.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316306225 + 256 = 17785^2 + 16^2 .

It is a cyclic number.

It is not a de Polignac number, because 316306481 - 2² = 316306477 is a prime.

It is a super-2 number, since 2×316306481² = 200099579845206722, which contains 22 as substring.

Together with 316306483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (316306483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158153240 + 158153241.

It is an arithmetic number, because the mean of its divisors is an integer number (158153241).

Almost surely, 2^316306481 is an apocalyptic number.

It is an amenable number.

316306481 is a deficient number, since it is larger than the sum of its proper divisors (1).

316306481 is an equidigital number, since it uses as much as digits as its factorization.

316306481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 316306481 is about 17785.0071970747. The cubic root of 316306481 is about 681.3485931317.

The spelling of 316306481 in words is "three hundred sixteen million, three hundred six thousand, four hundred eighty-one".