13521153 has 4 divisors (see below), whose sum is σ = 18028208. Its totient is φ = 9014100.

The previous prime is 13521149. The next prime is 13521197. The reversal of 13521153 is 35112531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13521153 - 2² = 13521149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13521113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2253523 + ... + 2253528.

It is an arithmetic number, because the mean of its divisors is an integer number (4507052).

Almost surely, 2^13521153 is an apocalyptic number.

It is an amenable number.

13521153 is a deficient number, since it is larger than the sum of its proper divisors (4507055).

13521153 is an equidigital number, since it uses as much as digits as its factorization.

13521153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4507054.

The product of its digits is 450, while the sum is 21.

The square root of 13521153 is about 3677.1120461580. The cubic root of 13521153 is about 238.2344569504.

Adding to 13521153 its reverse (35112531), we get a palindrome (48633684).

The spelling of 13521153 in words is "thirteen million, five hundred twenty-one thousand, one hundred fifty-three".