13243223 has 4 divisors (see below), whose sum is σ = 15135120. Its totient is φ = 11351328.

The previous prime is 13243213. The next prime is 13243253. The reversal of 13243223 is 32234231.

13243223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13243223 - 2⁶ = 13243159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13243195 and 13243204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13243213) 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, 945938 + ... + 945951.

It is an arithmetic number, because the mean of its divisors is an integer number (3783780).

Almost surely, 2^13243223 is an apocalyptic number.

13243223 is a deficient number, since it is larger than the sum of its proper divisors (1891897).

13243223 is an equidigital number, since it uses as much as digits as its factorization.

13243223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1891896.

The product of its digits is 864, while the sum is 20.

The square root of 13243223 is about 3639.1239330366. The cubic root of 13243223 is about 236.5908242952.

Adding to 13243223 its reverse (32234231), we get a palindrome (45477454).

The spelling of 13243223 in words is "thirteen million, two hundred forty-three thousand, two hundred twenty-three".