1297313168 has 10 divisors (see below), whose sum is σ = 2513544294. Its totient is φ = 648656576.

The previous prime is 1297313159. The next prime is 1297313177. The reversal of 1297313168 is 8613137921.

It is an interprime number because it is at equal distance from previous prime (1297313159) and next prime (1297313177).

It can be written as a sum of positive squares in only one way, i.e., 786914704 + 510398464 = 28052^2 + 22592^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40541021 + ... + 40541052.

Almost surely, 2^1297313168 is an apocalyptic number.

It is an amenable number.

1297313168 is a deficient number, since it is larger than the sum of its proper divisors (1216231126).

1297313168 is an equidigital number, since it uses as much as digits as its factorization.

1297313168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81082081 (or 81082075 counting only the distinct ones).

The product of its digits is 54432, while the sum is 41.

The square root of 1297313168 is about 36018.2338267717. The cubic root of 1297313168 is about 1090.6404697636.

The spelling of 1297313168 in words is "one billion, two hundred ninety-seven million, three hundred thirteen thousand, one hundred sixty-eight".