13943 has 4 divisors (see below), whose sum is σ = 14208. Its totient is φ = 13680.

The previous prime is 13933. The next prime is 13963. The reversal of 13943 is 34931.

13943 is nontrivially palindromic in base 3 and base 9.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34931 = 13 ⋅2687.

It is a cyclic number.

It is not a de Polignac number, because 13943 - 2⁶ = 13879 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13903) 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, 23 + ... + 168.

It is an arithmetic number, because the mean of its divisors is an integer number (3552).

2¹³⁹⁴³ is an apocalyptic number.

13943 is a deficient number, since it is larger than the sum of its proper divisors (265).

13943 is an equidigital number, since it uses as much as digits as its factorization.

13943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264.

The product of its digits is 324, while the sum is 20.

The square root of 13943 is about 118.0804810288. The cubic root of 13943 is about 24.0686690766.

The spelling of 13943 in words is "thirteen thousand, nine hundred forty-three".