13521332 has 48 divisors (see below), whose sum is σ = 27869184. Its totient is φ = 5676000.

The previous prime is 13521329. The next prime is 13521359. The reversal of 13521332 is 23312531.

13521332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31157 + ... + 31587.

It is an arithmetic number, because the mean of its divisors is an integer number (580608).

Almost surely, 2^13521332 is an apocalyptic number.

It is an amenable number.

13521332 is an abundant number, since it is smaller than the sum of its proper divisors (14347852).

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

13521332 is a wasteful number, since it uses less digits than its factorization.

13521332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its digits is 540, while the sum is 20.

The square root of 13521332 is about 3677.1363858307. The cubic root of 13521332 is about 238.2355082359.

Adding to 13521332 its reverse (23312531), we get a palindrome (36833863).

The spelling of 13521332 in words is "thirteen million, five hundred twenty-one thousand, three hundred thirty-two".