13168709 has 2 divisors, whose sum is σ = 13168710. Its totient is φ = 13168708.

The previous prime is 13168669. The next prime is 13168711. The reversal of 13168709 is 90786131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8850625 + 4318084 = 2975^2 + 2078^2 .

It is an emirp because it is prime and its reverse (90786131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13168709 - 2⁸ = 13168453 is a prime.

Together with 13168711, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13168739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6584354 + 6584355.

It is an arithmetic number, because the mean of its divisors is an integer number (6584355).

Almost surely, 2^13168709 is an apocalyptic number.

It is an amenable number.

13168709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13168709 is an equidigital number, since it uses as much as digits as its factorization.

13168709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 13168709 is about 3628.8715876978. The cubic root of 13168709 is about 236.1462573727.

The spelling of 13168709 in words is "thirteen million, one hundred sixty-eight thousand, seven hundred nine".