13315224 has 32 divisors (see below), whose sum is σ = 35849520. Its totient is φ = 4096896.

The previous prime is 13315223. The next prime is 13315249. The reversal of 13315224 is 42251331.

It is a self number, because there is not a number n which added to its sum of digits gives 13315224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315223) by changing a digit.

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, 21027 + ... + 21650.

Almost surely, 2^13315224 is an apocalyptic number.

It is an amenable number.

13315224 is an abundant number, since it is smaller than the sum of its proper divisors (22534296).

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

13315224 is a wasteful number, since it uses less digits than its factorization.

13315224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42699 (or 42695 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 13315224 is about 3649.0031515470. The cubic root of 13315224 is about 237.0188167153.

Adding to 13315224 its reverse (42251331), we get a palindrome (55566555).

It can be divided in two parts, 1331 and 5224, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 13315224 in words is "thirteen million, three hundred fifteen thousand, two hundred twenty-four".