13223215 has 8 divisors (see below), whose sum is σ = 16205760. Its totient is φ = 10353312.

The previous prime is 13223213. The next prime is 13223237. The reversal of 13223215 is 51232231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13223215 - 2¹ = 13223213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13223192 and 13223201.

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 7 ways as a sum of consecutive naturals, for example, 27900 + ... + 28369.

It is an arithmetic number, because the mean of its divisors is an integer number (2025720).

Almost surely, 2^13223215 is an apocalyptic number.

13223215 is a deficient number, since it is larger than the sum of its proper divisors (2982545).

13223215 is an equidigital number, since it uses as much as digits as its factorization.

13223215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56321.

The product of its digits is 360, while the sum is 19.

The square root of 13223215 is about 3636.3738806674. The cubic root of 13223215 is about 236.4716162764.

Adding to 13223215 its reverse (51232231), we get a palindrome (64455446).

The spelling of 13223215 in words is "thirteen million, two hundred twenty-three thousand, two hundred fifteen".