2104566043 has 4 divisors (see below), whose sum is σ = 2105246080. Its totient is φ = 2103886008.

The previous prime is 2104566019. The next prime is 2104566053. The reversal of 2104566043 is 3406654012.

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 2104566043 - 2²⁵ = 2071011611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2104565996 and 2104566014.

It is not an unprimeable number, because it can be changed into a prime (2104566053) 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, 335355 + ... + 341572.

It is an arithmetic number, because the mean of its divisors is an integer number (526311520).

Almost surely, 2^2104566043 is an apocalyptic number.

2104566043 is a deficient number, since it is larger than the sum of its proper divisors (680037).

2104566043 is an equidigital number, since it uses as much as digits as its factorization.

2104566043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680036.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 2104566043 is about 45875.5495116952. The cubic root of 2104566043 is about 1281.5066168591.

The spelling of 2104566043 in words is "two billion, one hundred four million, five hundred sixty-six thousand, forty-three".