2285945 has 4 divisors (see below), whose sum is σ = 2743140. Its totient is φ = 1828752.

The previous prime is 2285929. The next prime is 2285951. The reversal of 2285945 is 5495822.

It is a happy number.

2285945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5495822 = 2 ⋅2747911.

It can be written as a sum of positive squares in 2 ways, for example, as 984064 + 1301881 = 992^2 + 1141^2 .

It is a cyclic number.

It is not a de Polignac number, because 2285945 - 2⁴ = 2285929 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228590 + ... + 228599.

It is an arithmetic number, because the mean of its divisors is an integer number (685785).

2^2285945 is an apocalyptic number.

It is an amenable number.

2285945 is a deficient number, since it is larger than the sum of its proper divisors (457195).

2285945 is an equidigital number, since it uses as much as digits as its factorization.

2285945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457194.

The product of its digits is 28800, while the sum is 35.

The square root of 2285945 is about 1511.9341916896. The cubic root of 2285945 is about 131.7311831089.

The spelling of 2285945 in words is "two million, two hundred eighty-five thousand, nine hundred forty-five".