8143 has 4 divisors (see below), whose sum is σ = 8640. Its totient is φ = 7648.

The previous prime is 8123. The next prime is 8147. The reversal of 8143 is 3418.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3418 = 2 ⋅1709.

It is a cyclic number.

It is not a de Polignac number, because 8143 - 2⁵ = 8111 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223 + ... + 256.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2⁸¹⁴³ is an apocalyptic number.

8143 is a deficient number, since it is larger than the sum of its proper divisors (497).

8143 is a wasteful number, since it uses less digits than its factorization.

8143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496.

The product of its digits is 96, while the sum is 16.

The square root of 8143 is about 90.2385726837. The cubic root of 8143 is about 20.1184636000.

It can be divided in two parts, 814 and 3, that multiplied together give a palindrome (2442).

The spelling of 8143 in words is "eight thousand, one hundred forty-three".