13107817 has 2 divisors, whose sum is σ = 13107818. Its totient is φ = 13107816.

The previous prime is 13107811. The next prime is 13107827. The reversal of 13107817 is 71870131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10214416 + 2893401 = 3196^2 + 1701^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13107817 is a prime.

It is not a weakly prime, because it can be changed into another prime (13107811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6553908 + 6553909.

It is an arithmetic number, because the mean of its divisors is an integer number (6553909).

Almost surely, 2^13107817 is an apocalyptic number.

It is an amenable number.

13107817 is a deficient number, since it is larger than the sum of its proper divisors (1).

13107817 is an equidigital number, since it uses as much as digits as its factorization.

13107817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 13107817 is about 3620.4719305637. The cubic root of 13107817 is about 235.7817154764.

Adding to 13107817 its reverse (71870131), we get a palindrome (84977948).

It can be divided in two parts, 13107 and 817, that added together give a square (13924 = 118²).

The spelling of 13107817 in words is "thirteen million, one hundred seven thousand, eight hundred seventeen".