317696143 has 2 divisors, whose sum is σ = 317696144. Its totient is φ = 317696142.

The previous prime is 317696123. The next prime is 317696147. The reversal of 317696143 is 341696713.

It is a strong prime.

It is an emirp because it is prime and its reverse (341696713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317696143 - 2²¹ = 315598991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 317696096 and 317696105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317696147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158848071 + 158848072.

It is an arithmetic number, because the mean of its divisors is an integer number (158848072).

Almost surely, 2^317696143 is an apocalyptic number.

317696143 is a deficient number, since it is larger than the sum of its proper divisors (1).

317696143 is an equidigital number, since it uses as much as digits as its factorization.

317696143 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 317696143 is about 17824.0327367294. The cubic root of 317696143 is about 682.3449485202.

The spelling of 317696143 in words is "three hundred seventeen million, six hundred ninety-six thousand, one hundred forty-three".