12613317 has 4 divisors (see below), whose sum is σ = 16817760. Its totient is φ = 8408876.

The previous prime is 12613313. The next prime is 12613327. The reversal of 12613317 is 71331621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71331621 = 3 ⋅23777207.

It is a cyclic number.

It is not a de Polignac number, because 12613317 - 2² = 12613313 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12613313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2102217 + ... + 2102222.

It is an arithmetic number, because the mean of its divisors is an integer number (4204440).

Almost surely, 2^12613317 is an apocalyptic number.

It is an amenable number.

12613317 is a deficient number, since it is larger than the sum of its proper divisors (4204443).

12613317 is an equidigital number, since it uses as much as digits as its factorization.

12613317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204442.

The product of its digits is 756, while the sum is 24.

The square root of 12613317 is about 3551.5231943492. The cubic root of 12613317 is about 232.7786276892.

Adding to 12613317 its reverse (71331621), we get a palindrome (83944938).

The spelling of 12613317 in words is "twelve million, six hundred thirteen thousand, three hundred seventeen".