2065000043 has 4 divisors (see below), whose sum is σ = 2065910808. Its totient is φ = 2064089280.

The previous prime is 2065000031. The next prime is 2065000057. The reversal of 2065000043 is 3400005602.

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

It is a cyclic number.

It is not a de Polignac number, because 2065000043 - 2²⁶ = 1997891179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2064999979 and 2065000024.

It is not an unprimeable number, because it can be changed into a prime (2065000073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 451973 + ... + 456518.

It is an arithmetic number, because the mean of its divisors is an integer number (516477702).

Almost surely, 2^2065000043 is an apocalyptic number.

2065000043 is a deficient number, since it is larger than the sum of its proper divisors (910765).

2065000043 is an equidigital number, since it uses as much as digits as its factorization.

2065000043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910764.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2065000043 is about 45442.2715431348. The cubic root of 2065000043 is about 1273.4249510037.

Adding to 2065000043 its reverse (3400005602), we get a palindrome (5465005645).

The spelling of 2065000043 in words is "two billion, sixty-five million, forty-three", and thus it is an aban number and an uban number.