317615147 has 2 divisors, whose sum is σ = 317615148. Its totient is φ = 317615146.

The previous prime is 317615083. The next prime is 317615159. The reversal of 317615147 is 741516713.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 317615147 - 2⁶ = 317615083 is a prime.

It is not a weakly prime, because it can be changed into another prime (317615747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158807573 + 158807574.

It is an arithmetic number, because the mean of its divisors is an integer number (158807574).

Almost surely, 2^317615147 is an apocalyptic number.

317615147 is a deficient number, since it is larger than the sum of its proper divisors (1).

317615147 is an equidigital number, since it uses as much as digits as its factorization.

317615147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 317615147 is about 17821.7604910402. The cubic root of 317615147 is about 682.2869560955.

The spelling of 317615147 in words is "three hundred seventeen million, six hundred fifteen thousand, one hundred forty-seven".