13134640709 has 2 divisors, whose sum is σ = 13134640710. Its totient is φ = 13134640708.

The previous prime is 13134640679. The next prime is 13134640721. The reversal of 13134640709 is 90704643131.

13134640709 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12651300484 + 483340225 = 112478^2 + 21985^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13134640709 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13134640789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6567320354 + 6567320355.

It is an arithmetic number, because the mean of its divisors is an integer number (6567320355).

Almost surely, 2^13134640709 is an apocalyptic number.

It is an amenable number.

13134640709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13134640709 is an equidigital number, since it uses as much as digits as its factorization.

13134640709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The spelling of 13134640709 in words is "thirteen billion, one hundred thirty-four million, six hundred forty thousand, seven hundred nine".