13445717 has 2 divisors, whose sum is σ = 13445718. Its totient is φ = 13445716.

The previous prime is 13445683. The next prime is 13445737. The reversal of 13445717 is 71754431.

13445717 is digitally balanced in base 2 and base 3, because in such bases 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., 9156676 + 4289041 = 3026^2 + 2071^2 .

It is a cyclic number.

It is not a de Polignac number, because 13445717 - 2¹² = 13441621 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 (13445737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722858 + 6722859.

It is an arithmetic number, because the mean of its divisors is an integer number (6722859).

Almost surely, 2^13445717 is an apocalyptic number.

It is an amenable number.

13445717 is a deficient number, since it is larger than the sum of its proper divisors (1).

13445717 is an equidigital number, since it uses as much as digits as its factorization.

13445717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11760, while the sum is 32.

The square root of 13445717 is about 3666.8401928636. The cubic root of 13445717 is about 237.7905850398.

The spelling of 13445717 in words is "thirteen million, four hundred forty-five thousand, seven hundred seventeen".