2045243 has 4 divisors (see below), whose sum is σ = 2048280. Its totient is φ = 2042208.

The previous prime is 2045213. The next prime is 2045311. The reversal of 2045243 is 3425402.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2045243 - 2¹² = 2041147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045213) 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, 5 + ... + 2022.

It is an arithmetic number, because the mean of its divisors is an integer number (512070).

2^2045243 is an apocalyptic number.

2045243 is a deficient number, since it is larger than the sum of its proper divisors (3037).

2045243 is a wasteful number, since it uses less digits than its factorization.

2045243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3036.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 2045243 is about 1430.1199250413. The cubic root of 2045243 is about 126.9350733499.

The spelling of 2045243 in words is "two million, forty-five thousand, two hundred forty-three".