13322161 has 4 divisors (see below), whose sum is σ = 13329472. Its totient is φ = 13314852.

The previous prime is 13322147. The next prime is 13322167. The reversal of 13322161 is 16122331.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 16122331 = 359 ⋅44909.

It is a cyclic number.

It is not a de Polignac number, because 13322161 - 2¹¹ = 13320113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13322167) 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, 1540 + ... + 5386.

It is an arithmetic number, because the mean of its divisors is an integer number (3332368).

Almost surely, 2^13322161 is an apocalyptic number.

It is an amenable number.

13322161 is a deficient number, since it is larger than the sum of its proper divisors (7311).

13322161 is an equidigital number, since it uses as much as digits as its factorization.

13322161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310.

The product of its digits is 216, while the sum is 19.

The square root of 13322161 is about 3649.9535613484. The cubic root of 13322161 is about 237.0599704624.

Adding to 13322161 its reverse (16122331), we get a palindrome (29444492).

The spelling of 13322161 in words is "thirteen million, three hundred twenty-two thousand, one hundred sixty-one".