2281085 has 8 divisors (see below), whose sum is σ = 2765016. Its totient is φ = 1806400.

The previous prime is 2281079. The next prime is 2281093. The reversal of 2281085 is 5801822.

It can be written as a sum of positive squares in 4 ways, for example, as 143641 + 2137444 = 379^2 + 1462^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2281085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1754 + ... + 2763.

It is an arithmetic number, because the mean of its divisors is an integer number (345627).

2^2281085 is an apocalyptic number.

It is an amenable number.

2281085 is a deficient number, since it is larger than the sum of its proper divisors (483931).

2281085 is a wasteful number, since it uses less digits than its factorization.

2281085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4623.

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 2281085 is about 1510.3261237230. The cubic root of 2281085 is about 131.6377618189.

The spelling of 2281085 in words is "two million, two hundred eighty-one thousand, eighty-five".