13425224 has 8 divisors (see below), whose sum is σ = 25172310. Its totient is φ = 6712608.

The previous prime is 13425187. The next prime is 13425233. The reversal of 13425224 is 42252431.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 12460900 + 964324 = 3530^2 + 982^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13425224.

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 as a sum of consecutive naturals, namely, 839069 + ... + 839084.

Almost surely, 2^13425224 is an apocalyptic number.

It is an amenable number.

13425224 is a deficient number, since it is larger than the sum of its proper divisors (11747086).

13425224 is a wasteful number, since it uses less digits than its factorization.

13425224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678159 (or 1678155 counting only the distinct ones).

The product of its digits is 1920, while the sum is 23.

The square root of 13425224 is about 3664.0447595519. The cubic root of 13425224 is about 237.6697158125.

Adding to 13425224 its reverse (42252431), we get a palindrome (55677655).

The spelling of 13425224 in words is "thirteen million, four hundred twenty-five thousand, two hundred twenty-four".