13521532 has 12 divisors (see below), whose sum is σ = 23705920. Its totient is φ = 6748416.

The previous prime is 13521523. The next prime is 13521533. The reversal of 13521532 is 23512531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 357 + ... + 5212.

Almost surely, 2^13521532 is an apocalyptic number.

It is an amenable number.

13521532 is a deficient number, since it is larger than the sum of its proper divisors (10184388).

13521532 is a wasteful number, since it uses less digits than its factorization.

13521532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6180 (or 6178 counting only the distinct ones).

The product of its digits is 900, while the sum is 22.

The square root of 13521532 is about 3677.1635808052. The cubic root of 13521532 is about 238.2366828457.

Subtracting 13521532 from its reverse (23512531), we obtain a palindrome (9990999).

The spelling of 13521532 in words is "thirteen million, five hundred twenty-one thousand, five hundred thirty-two".