205032043 has 4 divisors (see below), whose sum is σ = 205245040. Its totient is φ = 204819048.

The previous prime is 205032031. The next prime is 205032049. The reversal of 205032043 is 340230502.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 340230502 = 2 ⋅170115251.

It is a cyclic number.

It is not a de Polignac number, because 205032043 - 2⁵ = 205032011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205032043.

It is not an unprimeable number, because it can be changed into a prime (205032049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105048 + ... + 106981.

It is an arithmetic number, because the mean of its divisors is an integer number (51311260).

Almost surely, 2^205032043 is an apocalyptic number.

205032043 is a deficient number, since it is larger than the sum of its proper divisors (212997).

205032043 is an equidigital number, since it uses as much as digits as its factorization.

205032043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212996.

The product of its (nonzero) digits is 720, while the sum is 19.

The square root of 205032043 is about 14318.9400096516. The cubic root of 205032043 is about 589.6675739147.

Adding to 205032043 its reverse (340230502), we get a palindrome (545262545).

The spelling of 205032043 in words is "two hundred five million, thirty-two thousand, forty-three".