12613243 has 2 divisors, whose sum is σ = 12613244. Its totient is φ = 12613242.

The previous prime is 12613241. The next prime is 12613291. The reversal of 12613243 is 34231621.

It is a weak prime.

It is an emirp because it is prime and its reverse (34231621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12613243 - 2¹ = 12613241 is a prime.

Together with 12613241, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12613241) 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, 6306621 + 6306622.

It is an arithmetic number, because the mean of its divisors is an integer number (6306622).

Almost surely, 2^12613243 is an apocalyptic number.

12613243 is a deficient number, since it is larger than the sum of its proper divisors (1).

12613243 is an equidigital number, since it uses as much as digits as its factorization.

12613243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 12613243 is about 3551.5127762687. The cubic root of 12613243 is about 232.7781724653.

Adding to 12613243 its reverse (34231621), we get a palindrome (46844864).

The spelling of 12613243 in words is "twelve million, six hundred thirteen thousand, two hundred forty-three".