1308313 has 2 divisors, whose sum is σ = 1308314. Its totient is φ = 1308312.

The previous prime is 1308301. The next prime is 1308323. The reversal of 1308313 is 3138031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1172889 + 135424 = 1083^2 + 368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1308313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1308323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 654156 + 654157.

It is an arithmetic number, because the mean of its divisors is an integer number (654157).

2^1308313 is an apocalyptic number.

It is an amenable number.

1308313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1308313 is an equidigital number, since it uses as much as digits as its factorization.

1308313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1308313 is about 1143.8151074365. The cubic root of 1308313 is about 109.3714287814.

The spelling of 1308313 in words is "one million, three hundred eight thousand, three hundred thirteen".