13242223 has 4 divisors (see below), whose sum is σ = 13275648. Its totient is φ = 13208800.

The previous prime is 13242199. The next prime is 13242253. The reversal of 13242223 is 32224231.

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 13242223 - 2⁵ = 13242191 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 13242223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242253) 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, 16111 + ... + 16912.

It is an arithmetic number, because the mean of its divisors is an integer number (3318912).

Almost surely, 2^13242223 is an apocalyptic number.

13242223 is a deficient number, since it is larger than the sum of its proper divisors (33425).

13242223 is an equidigital number, since it uses as much as digits as its factorization.

13242223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33424.

The product of its digits is 576, while the sum is 19.

The square root of 13242223 is about 3638.9865347374. The cubic root of 13242223 is about 236.5848691290.

Adding to 13242223 its reverse (32224231), we get a palindrome (45466454).

The spelling of 13242223 in words is "thirteen million, two hundred forty-two thousand, two hundred twenty-three".