12223457 has 2 divisors, whose sum is σ = 12223458. Its totient is φ = 12223456.

The previous prime is 12223447. The next prime is 12223469. The reversal of 12223457 is 75432221.

12223457 is digitally balanced in base 2, 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., 11621281 + 602176 = 3409^2 + 776^2 .

It is an emirp because it is prime and its reverse (75432221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12223457 - 2¹⁰ = 12222433 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (12223417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111728 + 6111729.

It is an arithmetic number, because the mean of its divisors is an integer number (6111729).

Almost surely, 2^12223457 is an apocalyptic number.

It is an amenable number.

12223457 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223457 is an equidigital number, since it uses as much as digits as its factorization.

12223457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3360, while the sum is 26.

The square root of 12223457 is about 3496.2060866030. The cubic root of 12223457 is about 230.3551978637.

Adding to 12223457 its reverse (75432221), we get a palindrome (87655678).

The spelling of 12223457 in words is "twelve million, two hundred twenty-three thousand, four hundred fifty-seven".