12726269 has 2 divisors, whose sum is σ = 12726270. Its totient is φ = 12726268.

The previous prime is 12726223. The next prime is 12726271. The reversal of 12726269 is 96262721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9078169 + 3648100 = 3013^2 + 1910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12726269 is a prime.

It is a super-2 number, since 2×12726269² = 323915845320722, which contains 22 as substring.

Together with 12726271, 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 (12726299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6363134 + 6363135.

It is an arithmetic number, because the mean of its divisors is an integer number (6363135).

Almost surely, 2^12726269 is an apocalyptic number.

It is an amenable number.

12726269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12726269 is an equidigital number, since it uses as much as digits as its factorization.

12726269 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12726269 is about 3567.3896619237. The cubic root of 12726269 is about 233.4714064888.

The spelling of 12726269 in words is "twelve million, seven hundred twenty-six thousand, two hundred sixty-nine".