13227161 has 4 divisors (see below), whose sum is σ = 13683300. Its totient is φ = 12771024.

The previous prime is 13227143. The next prime is 13227197. The reversal of 13227161 is 16172231.

13227161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11095561 + 2131600 = 3331^2 + 1460^2 .

It is a cyclic number.

It is not a de Polignac number, because 13227161 - 2¹⁴ = 13210777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13287161) 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, 228026 + ... + 228083.

It is an arithmetic number, because the mean of its divisors is an integer number (3420825).

Almost surely, 2^13227161 is an apocalyptic number.

It is an amenable number.

13227161 is a deficient number, since it is larger than the sum of its proper divisors (456139).

13227161 is an equidigital number, since it uses as much as digits as its factorization.

13227161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456138.

The product of its digits is 504, while the sum is 23.

The square root of 13227161 is about 3636.9164136669. The cubic root of 13227161 is about 236.4951361288.

Adding to 13227161 its reverse (16172231), we get a palindrome (29399392).

The spelling of 13227161 in words is "thirteen million, two hundred twenty-seven thousand, one hundred sixty-one".