13245917 has 2 divisors, whose sum is σ = 13245918. Its totient is φ = 13245916.

The previous prime is 13245901. The next prime is 13245931. The reversal of 13245917 is 71954231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6661561 + 6584356 = 2581^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 13245917 - 2⁴ = 13245901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13245937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622958 + 6622959.

It is an arithmetic number, because the mean of its divisors is an integer number (6622959).

Almost surely, 2^13245917 is an apocalyptic number.

It is an amenable number.

13245917 is a deficient number, since it is larger than the sum of its proper divisors (1).

13245917 is an equidigital number, since it uses as much as digits as its factorization.

13245917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 32.

The square root of 13245917 is about 3639.4940582449. The cubic root of 13245917 is about 236.6068660212.

The spelling of 13245917 in words is "thirteen million, two hundred forty-five thousand, nine hundred seventeen".