205341005 has 4 divisors (see below), whose sum is σ = 246409212. Its totient is φ = 164272800.

The previous prime is 205340981. The next prime is 205341013. The reversal of 205341005 is 500143502.

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

It can be written as a sum of positive squares in 2 ways, for example, as 106894921 + 98446084 = 10339^2 + 9922^2 .

It is not a de Polignac number, because 205341005 - 2⁸ = 205340749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 20534096 + ... + 20534105.

It is an arithmetic number, because the mean of its divisors is an integer number (61602303).

Almost surely, 2^205341005 is an apocalyptic number.

It is an amenable number.

205341005 is a deficient number, since it is larger than the sum of its proper divisors (41068207).

205341005 is an equidigital number, since it uses as much as digits as its factorization.

205341005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41068206.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 205341005 is about 14329.7245263124. The cubic root of 205341005 is about 589.9636145329.

Adding to 205341005 its reverse (500143502), we get a palindrome (705484507).

The spelling of 205341005 in words is "two hundred five million, three hundred forty-one thousand, five".