317531141 has 2 divisors, whose sum is σ = 317531142. Its totient is φ = 317531140.

The previous prime is 317531113. The next prime is 317531153. The reversal of 317531141 is 141135713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291419041 + 26112100 = 17071^2 + 5110^2 .

It is a cyclic number.

It is not a de Polignac number, because 317531141 - 2¹⁸ = 317268997 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 317531141.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (317531161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158765570 + 158765571.

It is an arithmetic number, because the mean of its divisors is an integer number (158765571).

Almost surely, 2^317531141 is an apocalyptic number.

It is an amenable number.

317531141 is a deficient number, since it is larger than the sum of its proper divisors (1).

317531141 is an equidigital number, since it uses as much as digits as its factorization.

317531141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260, while the sum is 26.

The square root of 317531141 is about 17819.4034973116. The cubic root of 317531141 is about 682.2267981208.

Adding to 317531141 its reverse (141135713), we get a palindrome (458666854).

The spelling of 317531141 in words is "three hundred seventeen million, five hundred thirty-one thousand, one hundred forty-one".