85243 has 2 divisors, whose sum is σ = 85244. Its totient is φ = 85242.

The previous prime is 85237. The next prime is 85247. The reversal of 85243 is 34258.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85243 - 2⁹ = 84731 is a prime.

It is not a weakly prime, because it can be changed into another prime (85247) 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 as a sum of consecutive naturals, namely, 42621 + 42622.

It is an arithmetic number, because the mean of its divisors is an integer number (42622).

2⁸⁵²⁴³ is an apocalyptic number.

85243 is a deficient number, since it is larger than the sum of its proper divisors (1).

85243 is an equidigital number, since it uses as much as digits as its factorization.

85243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 85243 is about 291.9640388815. The cubic root of 85243 is about 44.0101560578.

The spelling of 85243 in words is "eighty-five thousand, two hundred forty-three".