12513317 has 2 divisors, whose sum is σ = 12513318. Its totient is φ = 12513316.

The previous prime is 12513307. The next prime is 12513331. The reversal of 12513317 is 71331521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11874916 + 638401 = 3446^2 + 799^2 .

It is a cyclic number.

It is not a de Polignac number, because 12513317 - 2¹² = 12509221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12513292 and 12513301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12513307) 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, 6256658 + 6256659.

It is an arithmetic number, because the mean of its divisors is an integer number (6256659).

Almost surely, 2^12513317 is an apocalyptic number.

It is an amenable number.

12513317 is a deficient number, since it is larger than the sum of its proper divisors (1).

12513317 is an equidigital number, since it uses as much as digits as its factorization.

12513317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 23.

The square root of 12513317 is about 3537.4167128005. The cubic root of 12513317 is about 232.1618284817.

Adding to 12513317 its reverse (71331521), we get a palindrome (83844838).

The spelling of 12513317 in words is "twelve million, five hundred thirteen thousand, three hundred seventeen".