282133 has 4 divisors (see below), whose sum is σ = 283360. Its totient is φ = 280908.

The previous prime is 282127. The next prime is 282143. The reversal of 282133 is 331282.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a 3-Lehmer number, since φ(282133) divides (282133-1)³.

It is a cyclic number.

It is not a de Polignac number, because 282133 - 2⁵ = 282101 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 282133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153 + ... + 766.

It is an arithmetic number, because the mean of its divisors is an integer number (70840).

It is a Poulet number, since it divides 2²⁸²¹³²-1.

2²⁸²¹³³ is an apocalyptic number.

282133 is the 307-th octagonal number.

It is an amenable number.

282133 is a deficient number, since it is larger than the sum of its proper divisors (1227).

282133 is an equidigital number, since it uses as much as digits as its factorization.

282133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its digits is 288, while the sum is 19.

The square root of 282133 is about 531.1619338770. The cubic root of 282133 is about 65.5870295842.

The spelling of 282133 in words is "two hundred eighty-two thousand, one hundred thirty-three".