2005065 has 24 divisors (see below), whose sum is σ = 3681288. Its totient is φ = 1006080.

The previous prime is 2005061. The next prime is 2005079. The reversal of 2005065 is 5605002.

It can be written as a sum of positive squares in 4 ways, for example, as 725904 + 1279161 = 852^2 + 1131^2 .

It is not a de Polignac number, because 2005065 - 2² = 2005061 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2005061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 546 + ... + 2075.

It is an arithmetic number, because the mean of its divisors is an integer number (153387).

2^2005065 is an apocalyptic number.

It is an amenable number.

2005065 is a deficient number, since it is larger than the sum of its proper divisors (1676223).

2005065 is a wasteful number, since it uses less digits than its factorization.

2005065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2649 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 2005065 is about 1416.0031779625. The cubic root of 2005065 is about 126.0983736667.

The spelling of 2005065 in words is "two million, five thousand, sixty-five".