12606223 has 4 divisors (see below), whose sum is σ = 14407120. Its totient is φ = 10805328.

The previous prime is 12606203. The next prime is 12606239. The reversal of 12606223 is 32260621.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12606223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12606194 and 12606203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12606203) 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, 900438 + ... + 900451.

It is an arithmetic number, because the mean of its divisors is an integer number (3601780).

Almost surely, 2^12606223 is an apocalyptic number.

12606223 is a deficient number, since it is larger than the sum of its proper divisors (1800897).

12606223 is an equidigital number, since it uses as much as digits as its factorization.

12606223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1800896.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 12606223 is about 3550.5243274762. The cubic root of 12606223 is about 232.7349796078.

Adding to 12606223 its reverse (32260621), we get a palindrome (44866844).

The spelling of 12606223 in words is "twelve million, six hundred six thousand, two hundred twenty-three".