282561 has 8 divisors (see below), whose sum is σ = 381024. Its totient is φ = 186240.

The previous prime is 282559. The next prime is 282563. The reversal of 282561 is 165282.

It is an interprime number because it is at equal distance from previous prime (282559) and next prime (282563).

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

It is not a de Polignac number, because 282561 - 2¹ = 282559 is a prime.

282561 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 282561.

It is not an unprimeable number, because it can be changed into a prime (282563) 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, 195 + ... + 776.

It is an arithmetic number, because the mean of its divisors is an integer number (47628).

2²⁸²⁵⁶¹ is an apocalyptic number.

It is an amenable number.

282561 is a deficient number, since it is larger than the sum of its proper divisors (98463).

282561 is an equidigital number, since it uses as much as digits as its factorization.

282561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071.

The product of its digits is 960, while the sum is 24.

The square root of 282561 is about 531.5646715123. The cubic root of 282561 is about 65.6201783306.

The spelling of 282561 in words is "two hundred eighty-two thousand, five hundred sixty-one".