12543367 has 2 divisors, whose sum is σ = 12543368. Its totient is φ = 12543366.

The previous prime is 12543353. The next prime is 12543379. The reversal of 12543367 is 76334521.

It is a strong prime.

It is an emirp because it is prime and its reverse (76334521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12543367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12543337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6271683 + 6271684.

It is an arithmetic number, because the mean of its divisors is an integer number (6271684).

Almost surely, 2^12543367 is an apocalyptic number.

12543367 is a deficient number, since it is larger than the sum of its proper divisors (1).

12543367 is an equidigital number, since it uses as much as digits as its factorization.

12543367 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 31.

The square root of 12543367 is about 3541.6616156827. The cubic root of 12543367 is about 232.3475209420.

Adding to 12543367 its reverse (76334521), we get a palindrome (88877888).

The spelling of 12543367 in words is "twelve million, five hundred forty-three thousand, three hundred sixty-seven".