2065465 has 4 divisors (see below), whose sum is σ = 2478564. Its totient is φ = 1652368.

The previous prime is 2065429. The next prime is 2065489. The reversal of 2065465 is 5645602.

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 1183744 + 881721 = 1088^2 + 939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065465 - 2¹⁷ = 1934393 is a prime.

It is a super-2 number, since 2×2065465² = 8532291332450, which contains 22 as substring.

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, 206542 + ... + 206551.

It is an arithmetic number, because the mean of its divisors is an integer number (619641).

2^2065465 is an apocalyptic number.

It is an amenable number.

2065465 is a deficient number, since it is larger than the sum of its proper divisors (413099).

2065465 is an equidigital number, since it uses as much as digits as its factorization.

2065465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413098.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2065465 is about 1437.1725714054. The cubic root of 2065465 is about 127.3520518946.

It can be divided in two parts, 206 and 5465, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 2065465 in words is "two million, sixty-five thousand, four hundred sixty-five".