204471461 has 4 divisors (see below), whose sum is σ = 216499212. Its totient is φ = 192443712.

The previous prime is 204471419. The next prime is 204471497. The reversal of 204471461 is 164174402.

It is a happy number.

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 179720836 + 24750625 = 13406^2 + 4975^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204471461 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 (204471401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6013850 + ... + 6013883.

It is an arithmetic number, because the mean of its divisors is an integer number (54124803).

Almost surely, 2^204471461 is an apocalyptic number.

It is an amenable number.

204471461 is a deficient number, since it is larger than the sum of its proper divisors (12027751).

204471461 is a wasteful number, since it uses less digits than its factorization.

204471461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12027750.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 204471461 is about 14299.3517685243. The cubic root of 204471461 is about 589.1296762895.

The spelling of 204471461 in words is "two hundred four million, four hundred seventy-one thousand, four hundred sixty-one".