13532221 has 8 divisors (see below), whose sum is σ = 14411520. Its totient is φ = 12662208.

The previous prime is 13532219. The next prime is 13532249. The reversal of 13532221 is 12223531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13532221 - 2¹ = 13532219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13532251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820 + ... + 5266.

It is an arithmetic number, because the mean of its divisors is an integer number (1801440).

Almost surely, 2^13532221 is an apocalyptic number.

It is an amenable number.

13532221 is a deficient number, since it is larger than the sum of its proper divisors (879299).

13532221 is a wasteful number, since it uses less digits than its factorization.

13532221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4643.

The product of its digits is 360, while the sum is 19.

The square root of 13532221 is about 3678.6167237156. The cubic root of 13532221 is about 238.2994430216.

Adding to 13532221 its reverse (12223531), we get a palindrome (25755752).

The spelling of 13532221 in words is "thirteen million, five hundred thirty-two thousand, two hundred twenty-one".