2065445 has 4 divisors (see below), whose sum is σ = 2478540. Its totient is φ = 1652352.

The previous prime is 2065429. The next prime is 2065489. The reversal of 2065445 is 5445602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5445602 = 2 ⋅2722801.

It can be written as a sum of positive squares in 2 ways, for example, as 1110916 + 954529 = 1054^2 + 977^2 .

It is a cyclic number.

It is not a de Polignac number, because 2065445 - 2⁴ = 2065429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206540 + ... + 206549.

It is an arithmetic number, because the mean of its divisors is an integer number (619635).

2^2065445 is an apocalyptic number.

It is an amenable number.

2065445 is a deficient number, since it is larger than the sum of its proper divisors (413095).

2065445 is an equidigital number, since it uses as much as digits as its factorization.

2065445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413094.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2065445 is about 1437.1656132819. The cubic root of 2065445 is about 127.3516408412.

The spelling of 2065445 in words is "two million, sixty-five thousand, four hundred forty-five".