2042065 has 4 divisors (see below), whose sum is σ = 2450484. Its totient is φ = 1633648.

The previous prime is 2042059. The next prime is 2042077. The reversal of 2042065 is 5602402.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1535121 + 506944 = 1239^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 2042065 - 2⁷ = 2041937 is a prime.

It is a Duffinian 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, 204202 + ... + 204211.

It is an arithmetic number, because the mean of its divisors is an integer number (612621).

2^2042065 is an apocalyptic number.

It is an amenable number.

2042065 is a deficient number, since it is larger than the sum of its proper divisors (408419).

2042065 is an equidigital number, since it uses as much as digits as its factorization.

2042065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408418.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 2042065 is about 1429.0083974561. The cubic root of 2042065 is about 126.8692932633.

Adding to 2042065 its reverse (5602402), we get a palindrome (7644467).

The spelling of 2042065 in words is "two million, forty-two thousand, sixty-five".