13191 has 4 divisors (see below), whose sum is σ = 17592. Its totient is φ = 8792.

The previous prime is 13187. The next prime is 13217. The reversal of 13191 is 19131.

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

It is a cyclic number.

It is not a de Polignac number, because 13191 - 2² = 13187 is a prime.

It is a D-number.

It is a nialpdrome in base 12.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 13191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121) 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, 2196 + ... + 2201.

It is an arithmetic number, because the mean of its divisors is an integer number (4398).

2¹³¹⁹¹ is an apocalyptic number.

13191 is a deficient number, since it is larger than the sum of its proper divisors (4401).

13191 is an equidigital number, since it uses as much as digits as its factorization.

13191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4400.

The product of its digits is 27, while the sum is 15.

The square root of 13191 is about 114.8520787796. The cubic root of 13191 is about 23.6279425802.

It can be divided in two parts, 131 and 91, that added together give a palindrome (222).

The spelling of 13191 in words is "thirteen thousand, one hundred ninety-one".