248143 has 4 divisors (see below), whose sum is σ = 283600. Its totient is φ = 212688.

The previous prime is 248141. The next prime is 248161. The reversal of 248143 is 341842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341842 = 2 ⋅170921.

It is not a de Polignac number, because 248143 - 2¹ = 248141 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 (248141) 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, 17718 + ... + 17731.

It is an arithmetic number, because the mean of its divisors is an integer number (70900).

2²⁴⁸¹⁴³ is an apocalyptic number.

248143 is a deficient number, since it is larger than the sum of its proper divisors (35457).

248143 is an equidigital number, since it uses as much as digits as its factorization.

248143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35456.

The product of its digits is 768, while the sum is 22.

The square root of 248143 is about 498.1395386837. The cubic root of 248143 is about 62.8396864650.

Adding to 248143 its reverse (341842), we get a palindrome (589985).

The spelling of 248143 in words is "two hundred forty-eight thousand, one hundred forty-three".