12243229 has 2 divisors, whose sum is σ = 12243230. Its totient is φ = 12243228.

The previous prime is 12243227. The next prime is 12243241. The reversal of 12243229 is 92234221.

12243229 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12236004 + 7225 = 3498^2 + 85^2 .

It is an emirp because it is prime and its reverse (92234221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12243229 - 2¹ = 12243227 is a prime.

Together with 12243227, 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 (12243221) 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, 6121614 + 6121615.

It is an arithmetic number, because the mean of its divisors is an integer number (6121615).

Almost surely, 2^12243229 is an apocalyptic number.

It is an amenable number.

12243229 is a deficient number, since it is larger than the sum of its proper divisors (1).

12243229 is an equidigital number, since it uses as much as digits as its factorization.

12243229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 25.

The square root of 12243229 is about 3499.0325805857. The cubic root of 12243229 is about 230.4793343070.

The spelling of 12243229 in words is "twelve million, two hundred forty-three thousand, two hundred twenty-nine".