12237287 has 2 divisors, whose sum is σ = 12237288. Its totient is φ = 12237286.

The previous prime is 12237227. The next prime is 12237289. The reversal of 12237287 is 78273221.

12237287 is digitally balanced in base 3, 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 12237287 - 2⁸ = 12237031 is a prime.

Together with 12237289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12237289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6118643 + 6118644.

It is an arithmetic number, because the mean of its divisors is an integer number (6118644).

Almost surely, 2^12237287 is an apocalyptic number.

12237287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12237287 is an equidigital number, since it uses as much as digits as its factorization.

12237287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 12237287 is about 3498.1833857018. The cubic root of 12237287 is about 230.4420421346.

The spelling of 12237287 in words is "twelve million, two hundred thirty-seven thousand, two hundred eighty-seven".