12456227 has 4 divisors (see below), whose sum is σ = 14235696. Its totient is φ = 10676760.

The previous prime is 12456221. The next prime is 12456253. The reversal of 12456227 is 72265421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 72265421 = 113 ⋅639517.

It is a cyclic number.

It is not a de Polignac number, because 12456227 - 2⁴ = 12456211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12456227.

It is not an unprimeable number, because it can be changed into a prime (12456221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889724 + ... + 889737.

It is an arithmetic number, because the mean of its divisors is an integer number (3558924).

Almost surely, 2^12456227 is an apocalyptic number.

12456227 is a deficient number, since it is larger than the sum of its proper divisors (1779469).

12456227 is an equidigital number, since it uses as much as digits as its factorization.

12456227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779468.

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

The square root of 12456227 is about 3529.3380399163. The cubic root of 12456227 is about 231.8082231552.

The spelling of 12456227 in words is "twelve million, four hundred fifty-six thousand, two hundred twenty-seven".