204008461 has 4 divisors (see below), whose sum is σ = 207352924. Its totient is φ = 200664000.

The previous prime is 204008443. The next prime is 204008473. The reversal of 204008461 is 164800402.

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 95452900 + 108555561 = 9770^2 + 10419^2 .

It is a cyclic number.

It is not a de Polignac number, because 204008461 - 2¹⁵ = 203975693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204008401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1672140 + ... + 1672261.

It is an arithmetic number, because the mean of its divisors is an integer number (51838231).

Almost surely, 2^204008461 is an apocalyptic number.

It is an amenable number.

204008461 is a deficient number, since it is larger than the sum of its proper divisors (3344463).

204008461 is an equidigital number, since it uses as much as digits as its factorization.

204008461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344462.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 204008461 is about 14283.1530482593. The cubic root of 204008461 is about 588.6846701251.

Adding to 204008461 its reverse (164800402), we get a palindrome (368808863).

The spelling of 204008461 in words is "two hundred four million, eight thousand, four hundred sixty-one".