205204061 has 8 divisors (see below), whose sum is σ = 208816248. Its totient is φ = 201600000.

The previous prime is 205204037. The next prime is 205204073. The reversal of 205204061 is 160402502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15288100 + 189915961 = 3910^2 + 13781^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205204061 - 2⁶ = 205203997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205204031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71861 + ... + 74661.

It is an arithmetic number, because the mean of its divisors is an integer number (26102031).

Almost surely, 2^205204061 is an apocalyptic number.

It is an amenable number.

205204061 is a deficient number, since it is larger than the sum of its proper divisors (3612187).

205204061 is a wasteful number, since it uses less digits than its factorization.

205204061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 205204061 is about 14324.9454100181. The cubic root of 205204061 is about 589.8324344597.

Adding to 205204061 its reverse (160402502), we get a palindrome (365606563).

The spelling of 205204061 in words is "two hundred five million, two hundred four thousand, sixty-one".