304317313 has 2 divisors, whose sum is σ = 304317314. Its totient is φ = 304317312.

The previous prime is 304317269. The next prime is 304317317. The reversal of 304317313 is 313713403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269353744 + 34963569 = 16412^2 + 5913^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-304317313 is a prime.

It is not a weakly prime, because it can be changed into another prime (304317317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152158656 + 152158657.

It is an arithmetic number, because the mean of its divisors is an integer number (152158657).

Almost surely, 2^304317313 is an apocalyptic number.

It is an amenable number.

304317313 is a deficient number, since it is larger than the sum of its proper divisors (1).

304317313 is an equidigital number, since it uses as much as digits as its factorization.

304317313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 304317313 is about 17444.6929752289. The cubic root of 304317313 is about 672.6289470495.

The spelling of 304317313 in words is "three hundred four million, three hundred seventeen thousand, three hundred thirteen".