204564361 has 8 divisors (see below), whose sum is σ = 206613504. Its totient is φ = 202522320.

The previous prime is 204564359. The next prime is 204564389. The reversal of 204564361 is 163465402.

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 204564361 - 2¹ = 204564359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204564341) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 70071 + ... + 72931.

It is an arithmetic number, because the mean of its divisors is an integer number (25826688).

Almost surely, 2^204564361 is an apocalyptic number.

It is an amenable number.

204564361 is a deficient number, since it is larger than the sum of its proper divisors (2049143).

204564361 is a wasteful number, since it uses less digits than its factorization.

204564361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3551.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 204564361 is about 14302.5997986380. The cubic root of 204564361 is about 589.2188849253.

The spelling of 204564361 in words is "two hundred four million, five hundred sixty-four thousand, three hundred sixty-one".