12266279 has 2 divisors, whose sum is σ = 12266280. Its totient is φ = 12266278.

The previous prime is 12266269. The next prime is 12266281. The reversal of 12266279 is 97266221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12266279 - 2¹² = 12262183 is a prime.

Together with 12266281, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12266209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133139 + 6133140.

It is an arithmetic number, because the mean of its divisors is an integer number (6133140).

Almost surely, 2^12266279 is an apocalyptic number.

12266279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12266279 is an equidigital number, since it uses as much as digits as its factorization.

12266279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 12266279 is about 3502.3247993297. The cubic root of 12266279 is about 230.6238827265.

The spelling of 12266279 in words is "twelve million, two hundred sixty-six thousand, two hundred seventy-nine".