12815267 has 2 divisors, whose sum is σ = 12815268. Its totient is φ = 12815266.

The previous prime is 12815261. The next prime is 12815269. The reversal of 12815267 is 76251821.

12815267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12815267 - 2⁴ = 12815251 is a prime.

Together with 12815269, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12815261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6407633 + 6407634.

It is an arithmetic number, because the mean of its divisors is an integer number (6407634).

Almost surely, 2^12815267 is an apocalyptic number.

12815267 is a deficient number, since it is larger than the sum of its proper divisors (1).

12815267 is an equidigital number, since it uses as much as digits as its factorization.

12815267 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 12815267 is about 3579.8417562792. The cubic root of 12815267 is about 234.0143841451.

The spelling of 12815267 in words is "twelve million, eight hundred fifteen thousand, two hundred sixty-seven".