12266791 has 2 divisors, whose sum is σ = 12266792. Its totient is φ = 12266790.

The previous prime is 12266789. The next prime is 12266827. The reversal of 12266791 is 19766221.

It is a weak prime.

It is an emirp because it is prime and its reverse (19766221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12266791 - 2¹ = 12266789 is a prime.

It is a super-2 number, since 2×12266791² = 300948322875362, which contains 22 as substring.

Together with 12266789, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12266591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6133395 + 6133396.

It is an arithmetic number, because the mean of its divisors is an integer number (6133396).

Almost surely, 2^12266791 is an apocalyptic number.

12266791 is a deficient number, since it is larger than the sum of its proper divisors (1).

12266791 is an equidigital number, since it uses as much as digits as its factorization.

12266791 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 34.

The square root of 12266791 is about 3502.3978928728. The cubic root of 12266791 is about 230.6270914634.

The spelling of 12266791 in words is "twelve million, two hundred sixty-six thousand, seven hundred ninety-one".