1317315047 has 2 divisors, whose sum is σ = 1317315048. Its totient is φ = 1317315046.

The previous prime is 1317315037. The next prime is 1317315061. The reversal of 1317315047 is 7405137131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1317315047 - 2¹⁴ = 1317298663 is a prime.

It is a super-2 number, since 2×1317315047² = 3470637866105224418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1317315037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658657523 + 658657524.

It is an arithmetic number, because the mean of its divisors is an integer number (658657524).

Almost surely, 2^1317315047 is an apocalyptic number.

1317315047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317315047 is an equidigital number, since it uses as much as digits as its factorization.

1317315047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 32.

The square root of 1317315047 is about 36294.8349906705. The cubic root of 1317315047 is about 1096.2170456426.

The spelling of 1317315047 in words is "one billion, three hundred seventeen million, three hundred fifteen thousand, forty-seven".