205303873 has 4 divisors (see below), whose sum is σ = 216109360. Its totient is φ = 194498388.

The previous prime is 205303841. The next prime is 205303877. The reversal of 205303873 is 378303502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205303873 - 2⁵ = 205303841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (205303877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5402715 + ... + 5402752.

It is an arithmetic number, because the mean of its divisors is an integer number (54027340).

Almost surely, 2^205303873 is an apocalyptic number.

It is an amenable number.

205303873 is a deficient number, since it is larger than the sum of its proper divisors (10805487).

205303873 is a wasteful number, since it uses less digits than its factorization.

205303873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10805486.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 205303873 is about 14328.4288391994. The cubic root of 205303873 is about 589.9280511709.

The spelling of 205303873 in words is "two hundred five million, three hundred three thousand, eight hundred seventy-three".