12223454 has 4 divisors (see below), whose sum is σ = 18335184. Its totient is φ = 6111726.

The previous prime is 12223447. The next prime is 12223457. The reversal of 12223454 is 45432221.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055862 + ... + 3055865.

It is an arithmetic number, because the mean of its divisors is an integer number (4583796).

Almost surely, 2^12223454 is an apocalyptic number.

12223454 is a deficient number, since it is larger than the sum of its proper divisors (6111730).

12223454 is an equidigital number, since it uses as much as digits as its factorization.

12223454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6111729.

The product of its digits is 1920, while the sum is 23.

The square root of 12223454 is about 3496.2056575665. The cubic root of 12223454 is about 230.3551790184.

Adding to 12223454 its reverse (45432221), we get a palindrome (57655675).

The spelling of 12223454 in words is "twelve million, two hundred twenty-three thousand, four hundred fifty-four".