317203049 has 2 divisors, whose sum is σ = 317203050. Its totient is φ = 317203048.

The previous prime is 317202931. The next prime is 317203093. The reversal of 317203049 is 940302713.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315595225 + 1607824 = 17765^2 + 1268^2 .

It is a cyclic number.

It is not a de Polignac number, because 317203049 - 2⁸ = 317202793 is a prime.

It is not a weakly prime, because it can be changed into another prime (317203349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158601524 + 158601525.

It is an arithmetic number, because the mean of its divisors is an integer number (158601525).

Almost surely, 2^317203049 is an apocalyptic number.

It is an amenable number.

317203049 is a deficient number, since it is larger than the sum of its proper divisors (1).

317203049 is an equidigital number, since it uses as much as digits as its factorization.

317203049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 317203049 is about 17810.1950859613. The cubic root of 317203049 is about 681.9917447538.

The spelling of 317203049 in words is "three hundred seventeen million, two hundred three thousand, forty-nine".