65143 has 4 divisors (see below), whose sum is σ = 70168. Its totient is φ = 60120.

The previous prime is 65141. The next prime is 65147. The reversal of 65143 is 34156.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 65143 - 2¹ = 65141 is a prime.

It is a super-2 number, since 2×65143² = 8487220898, which contains 22 as substring.

It is a Duffinian number.

65143 is a lucky number.

It is a plaindrome in base 15.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 65143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2493 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (17542).

2⁶⁵¹⁴³ is an apocalyptic number.

65143 is a deficient number, since it is larger than the sum of its proper divisors (5025).

65143 is a wasteful number, since it uses less digits than its factorization.

65143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024.

The product of its digits is 360, while the sum is 19.

The square root of 65143 is about 255.2312676770. The cubic root of 65143 is about 40.2367213119.

Adding to 65143 its reverse (34156), we get a palindrome (99299).

The spelling of 65143 in words is "sixty-five thousand, one hundred forty-three".