316541647 has 2 divisors, whose sum is σ = 316541648. Its totient is φ = 316541646.

The previous prime is 316541611. The next prime is 316541677. The reversal of 316541647 is 746145613.

It is a strong prime.

It is an emirp because it is prime and its reverse (746145613) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 316541647 - 2¹⁵ = 316508879 is a prime.

It is a super-2 number, since 2×316541647² = 200397228570945218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (316541677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158270823 + 158270824.

It is an arithmetic number, because the mean of its divisors is an integer number (158270824).

Almost surely, 2^316541647 is an apocalyptic number.

316541647 is a deficient number, since it is larger than the sum of its proper divisors (1).

316541647 is an equidigital number, since it uses as much as digits as its factorization.

316541647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 37.

The square root of 316541647 is about 17791.6173238972. The cubic root of 316541647 is about 681.5174065455.

The spelling of 316541647 in words is "three hundred sixteen million, five hundred forty-one thousand, six hundred forty-seven".