12209269 has 2 divisors, whose sum is σ = 12209270. Its totient is φ = 12209268.

The previous prime is 12209233. The next prime is 12209273. The reversal of 12209269 is 96290221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7535025 + 4674244 = 2745^2 + 2162^2 .

It is an emirp because it is prime and its reverse (96290221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12209269 is a prime.

It is a super-2 number, since 2×12209269² = 298132499028722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12209269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12209369) 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, 6104634 + 6104635.

It is an arithmetic number, because the mean of its divisors is an integer number (6104635).

Almost surely, 2^12209269 is an apocalyptic number.

It is an amenable number.

12209269 is a deficient number, since it is larger than the sum of its proper divisors (1).

12209269 is an equidigital number, since it uses as much as digits as its factorization.

12209269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 12209269 is about 3494.1764408799. The cubic root of 12209269 is about 230.2660374655.

The spelling of 12209269 in words is "twelve million, two hundred nine thousand, two hundred sixty-nine".