285283 has 2 divisors, whose sum is σ = 285284. Its totient is φ = 285282.

The previous prime is 285281. The next prime is 285287. The reversal of 285283 is 382582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 285283 - 2¹ = 285281 is a prime.

Together with 285281, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (285281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142641 + 142642.

It is an arithmetic number, because the mean of its divisors is an integer number (142642).

2²⁸⁵²⁸³ is an apocalyptic number.

285283 is a deficient number, since it is larger than the sum of its proper divisors (1).

285283 is an equidigital number, since it uses as much as digits as its factorization.

285283 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 28.

The square root of 285283 is about 534.1189006205. The cubic root of 285283 is about 65.8302186566.

The spelling of 285283 in words is "two hundred eighty-five thousand, two hundred eighty-three".