14091 has 16 divisors (see below), whose sum is σ = 23808. Its totient is φ = 7200.

The previous prime is 14087. The next prime is 14107. The reversal of 14091 is 19041.

14091 = 14² + 15² + ... + 35².

It is not a de Polignac number, because 14091 - 2² = 14087 is a prime.

14091 is a lucky number.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 14091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201 + ... + 261.

It is an arithmetic number, because the mean of its divisors is an integer number (1488).

2¹⁴⁰⁹¹ is an apocalyptic number.

14091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14091 is a deficient number, since it is larger than the sum of its proper divisors (9717).

14091 is a wasteful number, since it uses less digits than its factorization.

14091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 14091 is about 118.7055179846. The cubic root of 14091 is about 24.1535296548.

Subtracting 14091 from its reverse (19041), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 140 and 91, that added together give a triangular number (231 = T₂₁).

The spelling of 14091 in words is "fourteen thousand, ninety-one".