12207287 has 2 divisors, whose sum is σ = 12207288. Its totient is φ = 12207286.

The previous prime is 12207271. The next prime is 12207301. The reversal of 12207287 is 78270221.

It is a strong prime.

It is an emirp because it is prime and its reverse (78270221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12207287 - 2⁴ = 12207271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12207187) 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, 6103643 + 6103644.

It is an arithmetic number, because the mean of its divisors is an integer number (6103644).

Almost surely, 2^12207287 is an apocalyptic number.

12207287 is a deficient number, since it is larger than the sum of its proper divisors (1).

12207287 is an equidigital number, since it uses as much as digits as its factorization.

12207287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3136, while the sum is 29.

The square root of 12207287 is about 3493.8928146124. The cubic root of 12207287 is about 230.2535766599.

The spelling of 12207287 in words is "twelve million, two hundred seven thousand, two hundred eighty-seven".