12247223 has 4 divisors (see below), whose sum is σ = 12260808. Its totient is φ = 12233640.

The previous prime is 12247211. The next prime is 12247237. The reversal of 12247223 is 32274221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12247223 - 2⁸ = 12246967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12247243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5336 + ... + 7277.

It is an arithmetic number, because the mean of its divisors is an integer number (3065202).

Almost surely, 2^12247223 is an apocalyptic number.

12247223 is a deficient number, since it is larger than the sum of its proper divisors (13585).

12247223 is an equidigital number, since it uses as much as digits as its factorization.

12247223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13584.

The product of its digits is 1344, while the sum is 23.

The square root of 12247223 is about 3499.6032632286. The cubic root of 12247223 is about 230.5043939918.

The spelling of 12247223 in words is "twelve million, two hundred forty-seven thousand, two hundred twenty-three".