13521452 has 36 divisors (see below), whose sum is σ = 27770400. Its totient is φ = 5743584.

The previous prime is 13521449. The next prime is 13521461. The reversal of 13521452 is 25412531.

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 11 ways as a sum of consecutive naturals, for example, 28973 + ... + 29435.

It is an arithmetic number, because the mean of its divisors is an integer number (771400).

Almost surely, 2^13521452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13521452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13885200).

13521452 is an abundant number, since it is smaller than the sum of its proper divisors (14248948).

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

13521452 is a wasteful number, since it uses less digits than its factorization.

13521452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630 (or 621 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 13521452 is about 3677.1527028395. The cubic root of 13521452 is about 238.2362130032.

Adding to 13521452 its reverse (25412531), we get a palindrome (38933983).

The spelling of 13521452 in words is "thirteen million, five hundred twenty-one thousand, four hundred fifty-two".