13206223 has 12 divisors (see below), whose sum is σ = 14047488. Its totient is φ = 12407360.

The previous prime is 13206191. The next prime is 13206227. The reversal of 13206223 is 32260231.

13206223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13206223 - 2⁵ = 13206191 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 13206223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13206227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34290 + ... + 34672.

It is an arithmetic number, because the mean of its divisors is an integer number (1170624).

Almost surely, 2^13206223 is an apocalyptic number.

13206223 is a deficient number, since it is larger than the sum of its proper divisors (841265).

13206223 is an equidigital number, since it uses as much as digits as its factorization.

13206223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 453 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 13206223 is about 3634.0367361930. The cubic root of 13206223 is about 236.3702831778.

Adding to 13206223 its reverse (32260231), we get a palindrome (45466454).

The spelling of 13206223 in words is "thirteen million, two hundred six thousand, two hundred twenty-three".