1316973613 has 2 divisors, whose sum is σ = 1316973614. Its totient is φ = 1316973612.

The previous prime is 1316973569. The next prime is 1316973631. The reversal of 1316973613 is 3163796131.

Together with next prime (1316973631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989291209 + 327682404 = 31453^2 + 18102^2 .

It is an emirp because it is prime and its reverse (3163796131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1316973613 - 2⁹ = 1316973101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316923613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658486806 + 658486807.

It is an arithmetic number, because the mean of its divisors is an integer number (658486807).

Almost surely, 2^1316973613 is an apocalyptic number.

It is an amenable number.

1316973613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316973613 is an equidigital number, since it uses as much as digits as its factorization.

1316973613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 40.

The square root of 1316973613 is about 36290.1310689284. The cubic root of 1316973613 is about 1096.1223282063.

The spelling of 1316973613 in words is "one billion, three hundred sixteen million, nine hundred seventy-three thousand, six hundred thirteen".