317893141 has 2 divisors, whose sum is σ = 317893142. Its totient is φ = 317893140.

The previous prime is 317893133. The next prime is 317893181. The reversal of 317893141 is 141398713.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253733041 + 64160100 = 15929^2 + 8010^2 .

It is an emirp because it is prime and its reverse (141398713) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 317893141 - 2³ = 317893133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317893141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317893181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158946570 + 158946571.

It is an arithmetic number, because the mean of its divisors is an integer number (158946571).

Almost surely, 2^317893141 is an apocalyptic number.

It is an amenable number.

317893141 is a deficient number, since it is larger than the sum of its proper divisors (1).

317893141 is an equidigital number, since it uses as much as digits as its factorization.

317893141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 317893141 is about 17829.5580707992. The cubic root of 317893141 is about 682.4859562291.

The spelling of 317893141 in words is "three hundred seventeen million, eight hundred ninety-three thousand, one hundred forty-one".