13291 has 2 divisors, whose sum is σ = 13292.
Its totient is φ = 13290.
The previous prime is 13267. The next prime is 13297. The reversal of 13291 is 19231.
It is a strong prime.
It is an emirp because it is prime and its reverse (19231) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 13291 - 25 = 13259 is a prime.
It is not a weakly prime, because it can be changed into another prime (13297) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6645 + 6646.
It is an arithmetic number, because the mean of its divisors is an integer number (6646).
213291 is an apocalyptic number.
13291 is a deficient number, since it is larger than the sum of its proper divisors (1).
13291 is an equidigital number, since it uses as much as digits as its factorization.
13291 is an evil number, because the sum of its binary digits is even.
The product of its digits is 54, while the sum is 16.
The square root of 13291 is about 115.2865993947.
The cubic root of 13291 is about 23.6874995649.
The spelling of 13291 in words is "thirteen thousand, two hundred ninety-one".