1298317 has 2 divisors, whose sum is σ = 1298318. Its totient is φ = 1298316.

The previous prime is 1298309. The next prime is 1298329. The reversal of 1298317 is 7138921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 820836 + 477481 = 906^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1298317 - 2³ = 1298309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1298357) 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, 649158 + 649159.

It is an arithmetic number, because the mean of its divisors is an integer number (649159).

2^1298317 is an apocalyptic number.

It is an amenable number.

1298317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1298317 is an equidigital number, since it uses as much as digits as its factorization.

1298317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 1298317 is about 1139.4371417503. The cubic root of 1298317 is about 109.0921701664.

The spelling of 1298317 in words is "one million, two hundred ninety-eight thousand, three hundred seventeen".