13216532 has 12 divisors (see below), whose sum is σ = 26433120. Its totient is φ = 5664216.

The previous prime is 13216519. The next prime is 13216543. The reversal of 13216532 is 23561231.

13216532 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 13216498 and 13216507.

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 3 ways as a sum of consecutive naturals, for example, 235982 + ... + 236037.

It is an arithmetic number, because the mean of its divisors is an integer number (2202760).

Almost surely, 2^13216532 is an apocalyptic number.

It is an amenable number.

13216532 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13216532 is a wasteful number, since it uses less digits than its factorization.

13216532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472030 (or 472028 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 13216532 is about 3635.4548546227. The cubic root of 13216532 is about 236.4317720549.

Adding to 13216532 its reverse (23561231), we get a palindrome (36777763).

The spelling of 13216532 in words is "thirteen million, two hundred sixteen thousand, five hundred thirty-two".