204941005 has 4 divisors (see below), whose sum is σ = 245929212. Its totient is φ = 163952800.

The previous prime is 204940979. The next prime is 204941021. The reversal of 204941005 is 500149402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500149402 = 2 ⋅250074701.

It can be written as a sum of positive squares in 2 ways, for example, as 142420356 + 62520649 = 11934^2 + 7907^2 .

It is not a de Polignac number, because 204941005 - 2¹¹ = 204938957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20494096 + ... + 20494105.

It is an arithmetic number, because the mean of its divisors is an integer number (61482303).

Almost surely, 2^204941005 is an apocalyptic number.

It is an amenable number.

204941005 is a deficient number, since it is larger than the sum of its proper divisors (40988207).

204941005 is an equidigital number, since it uses as much as digits as its factorization.

204941005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40988206.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 204941005 is about 14315.7607202691. The cubic root of 204941005 is about 589.5802865765.

The spelling of 204941005 in words is "two hundred four million, nine hundred forty-one thousand, five".