13312636 has 6 divisors (see below), whose sum is σ = 23297120. Its totient is φ = 6656316.

The previous prime is 13312633. The next prime is 13312657. The reversal of 13312636 is 63621331.

13312636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13312636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1664076 + ... + 1664083.

Almost surely, 2^13312636 is an apocalyptic number.

It is an amenable number.

13312636 is a deficient number, since it is larger than the sum of its proper divisors (9984484).

13312636 is a wasteful number, since it uses less digits than its factorization.

13312636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328163 (or 3328161 counting only the distinct ones).

The product of its digits is 1944, while the sum is 25.

The square root of 13312636 is about 3648.6485169169. The cubic root of 13312636 is about 237.0034597464.

Adding to 13312636 its reverse (63621331), we get a palindrome (76933967).

It can be divided in two parts, 133 and 12636, that added together give a square (12769 = 113²).

The spelling of 13312636 in words is "thirteen million, three hundred twelve thousand, six hundred thirty-six".