1316991341 has 2 divisors, whose sum is σ = 1316991342. Its totient is φ = 1316991340.

The previous prime is 1316991337. The next prime is 1316991349. The reversal of 1316991341 is 1431996131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 668015716 + 648975625 = 25846^2 + 25475^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316991341 - 2² = 1316991337 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1316991295 and 1316991304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316991349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658495670 + 658495671.

It is an arithmetic number, because the mean of its divisors is an integer number (658495671).

Almost surely, 2^1316991341 is an apocalyptic number.

It is an amenable number.

1316991341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316991341 is an equidigital number, since it uses as much as digits as its factorization.

1316991341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 1316991341 is about 36290.3753218398. The cubic root of 1316991341 is about 1096.1272465456.

The spelling of 1316991341 in words is "one billion, three hundred sixteen million, nine hundred ninety-one thousand, three hundred forty-one".