89143 has 4 divisors (see below), whose sum is σ = 90160. Its totient is φ = 88128.

The previous prime is 89137. The next prime is 89153. The reversal of 89143 is 34198.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34198 = 2 ⋅17099.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89113) 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, 363 + ... + 556.

It is an arithmetic number, because the mean of its divisors is an integer number (22540).

2⁸⁹¹⁴³ is an apocalyptic number.

89143 is a deficient number, since it is larger than the sum of its proper divisors (1017).

89143 is an equidigital number, since it uses as much as digits as its factorization.

89143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016.

The product of its digits is 864, while the sum is 25.

The square root of 89143 is about 298.5682501540. The cubic root of 89143 is about 44.6713504655.

Subtracting from 89143 its reverse (34198), we obtain a palindrome (54945).

It can be divided in two parts, 89 and 143, that added together give a palindrome (232).

The spelling of 89143 in words is "eighty-nine thousand, one hundred forty-three".