13223252 has 24 divisors (see below), whose sum is σ = 27597696. Its totient is φ = 5420448.

The previous prime is 13223239. The next prime is 13223269. The reversal of 13223252 is 25232231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9623 + ... + 10910.

It is an arithmetic number, because the mean of its divisors is an integer number (1149904).

Almost surely, 2^13223252 is an apocalyptic number.

It is an amenable number.

13223252 is an abundant number, since it is smaller than the sum of its proper divisors (14374444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13223252 is a wasteful number, since it uses less digits than its factorization.

13223252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20567 (or 20565 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 13223252 is about 3636.3789681495. The cubic root of 13223252 is about 236.4718368340.

Adding to 13223252 its reverse (25232231), we get a palindrome (38455483).

The spelling of 13223252 in words is "thirteen million, two hundred twenty-three thousand, two hundred fifty-two".