12451223 has 2 divisors, whose sum is σ = 12451224. Its totient is φ = 12451222.

The previous prime is 12451217. The next prime is 12451253. The reversal of 12451223 is 32215421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12451223 - 2¹⁴ = 12434839 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 12451195 and 12451204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12451253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6225611 + 6225612.

It is an arithmetic number, because the mean of its divisors is an integer number (6225612).

Almost surely, 2^12451223 is an apocalyptic number.

12451223 is a deficient number, since it is larger than the sum of its proper divisors (1).

12451223 is an equidigital number, since it uses as much as digits as its factorization.

12451223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 20.

The square root of 12451223 is about 3528.6290538961. The cubic root of 12451223 is about 231.7771778070. Note that the first 3 decimals are identical.

Adding to 12451223 its reverse (32215421), we get a palindrome (44666644).

The spelling of 12451223 in words is "twelve million, four hundred fifty-one thousand, two hundred twenty-three".