12735224 has 16 divisors (see below), whose sum is σ = 24434520. Its totient is φ = 6219360.

The previous prime is 12735223. The next prime is 12735251. The reversal of 12735224 is 42253721.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 12735193 and 12735202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12735221) 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 3 ways as a sum of consecutive naturals, for example, 18167 + ... + 18854.

Almost surely, 2^12735224 is an apocalyptic number.

It is an amenable number.

12735224 is a deficient number, since it is larger than the sum of its proper divisors (11699296).

12735224 is a wasteful number, since it uses less digits than its factorization.

12735224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37070 (or 37066 counting only the distinct ones).

The product of its digits is 3360, while the sum is 26.

The square root of 12735224 is about 3568.6445606140. The cubic root of 12735224 is about 233.5261553511.

Adding to 12735224 its reverse (42253721), we get a palindrome (54988945).

The spelling of 12735224 in words is "twelve million, seven hundred thirty-five thousand, two hundred twenty-four".