85143 has 8 divisors (see below), whose sum is σ = 115056. Its totient is φ = 56000.

The previous prime is 85133. The next prime is 85147. The reversal of 85143 is 34158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85143 - 2⁹ = 84631 is a prime.

85143 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 85143.

It is not an unprimeable number, because it can be changed into a prime (85147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163 + ... + 443.

It is an arithmetic number, because the mean of its divisors is an integer number (14382).

2⁸⁵¹⁴³ is an apocalyptic number.

85143 is a deficient number, since it is larger than the sum of its proper divisors (29913).

85143 is a wasteful number, since it uses less digits than its factorization.

85143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385.

The product of its digits is 480, while the sum is 21.

The square root of 85143 is about 291.7927346594. The cubic root of 85143 is about 43.9929396385.

It can be divided in two parts, 8 and 5143, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 85143 in words is "eighty-five thousand, one hundred forty-three".