1317970553 has 2 divisors, whose sum is σ = 1317970554. Its totient is φ = 1317970552.

The previous prime is 1317970523. The next prime is 1317970561. The reversal of 1317970553 is 3550797131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 799588729 + 518381824 = 28277^2 + 22768^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1317970553 is a prime.

It is a Sophie Germain 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 1317970553.

It is not a weakly prime, because it can be changed into another prime (1317970523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658985276 + 658985277.

It is an arithmetic number, because the mean of its divisors is an integer number (658985277).

Almost surely, 2^1317970553 is an apocalyptic number.

It is an amenable number.

1317970553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1317970553 is an equidigital number, since it uses as much as digits as its factorization.

1317970553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 99225, while the sum is 41.

The square root of 1317970553 is about 36303.8641607199. The cubic root of 1317970553 is about 1096.3988441414.

The spelling of 1317970553 in words is "one billion, three hundred seventeen million, nine hundred seventy thousand, five hundred fifty-three".