13091 has 8 divisors (see below), whose sum is σ = 15120. Its totient is φ = 11232.

The previous prime is 13063. The next prime is 13093. The reversal of 13091 is 19031.

13091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-13091 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 7 and base 11.

It is not an unprimeable number, because it can be changed into a prime (13093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221 + ... + 273.

It is an arithmetic number, because the mean of its divisors is an integer number (1890).

2¹³⁰⁹¹ is an apocalyptic number.

13091 is a deficient number, since it is larger than the sum of its proper divisors (2029).

13091 is a wasteful number, since it uses less digits than its factorization.

13091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 13091 is about 114.4159079849. The cubic root of 13091 is about 23.5680838317.

The spelling of 13091 in words is "thirteen thousand, ninety-one".