12226457 has 2 divisors, whose sum is σ = 12226458. Its totient is φ = 12226456.

The previous prime is 12226453. The next prime is 12226469. The reversal of 12226457 is 75462221.

It is a happy number.

12226457 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., 11723776 + 502681 = 3424^2 + 709^2 .

It is an emirp because it is prime and its reverse (75462221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12226457 - 2² = 12226453 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12226453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6113228 + 6113229.

It is an arithmetic number, because the mean of its divisors is an integer number (6113229).

Almost surely, 2^12226457 is an apocalyptic number.

It is an amenable number.

12226457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12226457 is an equidigital number, since it uses as much as digits as its factorization.

12226457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 12226457 is about 3496.6350967752. The cubic root of 12226457 is about 230.3740416618.

Adding to 12226457 its reverse (75462221), we get a palindrome (87688678).

The spelling of 12226457 in words is "twelve million, two hundred twenty-six thousand, four hundred fifty-seven".