282105085 has 4 divisors (see below), whose sum is σ = 338526108. Its totient is φ = 225684064.

The previous prime is 282105077. The next prime is 282105107. The reversal of 282105085 is 580501282.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 580501282 = 2 ⋅290250641.

It can be written as a sum of positive squares in 2 ways, for example, as 50395801 + 231709284 = 7099^2 + 15222^2 .

It is a cyclic number.

It is not a de Polignac number, because 282105085 - 2³ = 282105077 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28210504 + ... + 28210513.

It is an arithmetic number, because the mean of its divisors is an integer number (84631527).

Almost surely, 2^282105085 is an apocalyptic number.

It is an amenable number.

282105085 is a deficient number, since it is larger than the sum of its proper divisors (56421023).

282105085 is an equidigital number, since it uses as much as digits as its factorization.

282105085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56421022.

The product of its (nonzero) digits is 6400, while the sum is 31.

The square root of 282105085 is about 16795.9841926575. The cubic root of 282105085 is about 655.8486639364.

The spelling of 282105085 in words is "two hundred eighty-two million, one hundred five thousand, eighty-five".