It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1317941 is a prime.
It is a Sophie Germain prime.
It is a Chen prime.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 1317941.
It is a congruent number.
21317941 is an apocalyptic number.
It is an amenable number.
1317941 is an equidigital number, since it uses as much as digits as its factorization.
1317941 is an odious number, because the sum of its binary digits is odd.
The square root of 1317941 is about 1148.0161148695. The cubic root of 1317941 is about 109.6390649189.
The spelling of 1317941 in words is "one million, three hundred seventeen thousand, nine hundred forty-one".