286243 has 2 divisors, whose sum is σ = 286244. Its totient is φ = 286242.

The previous prime is 286199. The next prime is 286249. The reversal of 286243 is 342682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 286243 - 2⁹ = 285731 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 8 + 2¹¹ + 6⁷ + 4² + 3⁷ .

286243 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (286249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143121 + 143122.

It is an arithmetic number, because the mean of its divisors is an integer number (143122).

2²⁸⁶²⁴³ is an apocalyptic number.

286243 is a deficient number, since it is larger than the sum of its proper divisors (1).

286243 is an equidigital number, since it uses as much as digits as its factorization.

286243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 286243 is about 535.0168221654. The cubic root of 286243 is about 65.9039772922.

It can be divided in two parts, 286 and 243, that added together give a square (529 = 23²).

The spelling of 286243 in words is "two hundred eighty-six thousand, two hundred forty-three".