204101305 has 8 divisors (see below), whose sum is σ = 247347144. Its totient is φ = 161664000.

The previous prime is 204101299. The next prime is 204101309. The reversal of 204101305 is 503101402.

204101305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11002489 + 193098816 = 3317^2 + 13896^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-204101305 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204101309) 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, 201576 + ... + 202585.

It is an arithmetic number, because the mean of its divisors is an integer number (30918393).

Almost surely, 2^204101305 is an apocalyptic number.

It is an amenable number.

204101305 is a deficient number, since it is larger than the sum of its proper divisors (43245839).

204101305 is a wasteful number, since it uses less digits than its factorization.

204101305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404267.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 204101305 is about 14286.4028012653. The cubic root of 204101305 is about 588.7739598046.

Adding to 204101305 its reverse (503101402), we get a palindrome (707202707).

The spelling of 204101305 in words is "two hundred four million, one hundred one thousand, three hundred five".