13223223 has 32 divisors (see below), whose sum is σ = 21362880. Its totient is φ = 8035200.

The previous prime is 13223213. The next prime is 13223237. The reversal of 13223223 is 32232231.

It is a happy number.

It is not a de Polignac number, because 13223223 - 2⁵ = 13223191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13223196 and 13223205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13223213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35265 + ... + 35637.

It is an arithmetic number, because the mean of its divisors is an integer number (667590).

Almost surely, 2^13223223 is an apocalyptic number.

13223223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13223223 is a deficient number, since it is larger than the sum of its proper divisors (8139657).

13223223 is a wasteful number, since it uses less digits than its factorization.

13223223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 490 counting only the distinct ones).

The product of its digits is 432, while the sum is 18.

The square root of 13223223 is about 3636.3749806641. The cubic root of 13223223 is about 236.4716639645.

Adding to 13223223 its reverse (32232231), we get a palindrome (45455454).

The spelling of 13223223 in words is "thirteen million, two hundred twenty-three thousand, two hundred twenty-three".