13613317 has 2 divisors, whose sum is σ = 13613318. Its totient is φ = 13613316.

The previous prime is 13613297. The next prime is 13613321. The reversal of 13613317 is 71331631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13315201 + 298116 = 3649^2 + 546^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13613317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13613291 and 13613300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13613357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6806658 + 6806659.

It is an arithmetic number, because the mean of its divisors is an integer number (6806659).

Almost surely, 2^13613317 is an apocalyptic number.

It is an amenable number.

13613317 is a deficient number, since it is larger than the sum of its proper divisors (1).

13613317 is an equidigital number, since it uses as much as digits as its factorization.

13613317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 25.

The square root of 13613317 is about 3689.6228804581. The cubic root of 13613317 is about 238.7745228505.

Adding to 13613317 its reverse (71331631), we get a palindrome (84944948).

The spelling of 13613317 in words is "thirteen million, six hundred thirteen thousand, three hundred seventeen".