204134245 has 12 divisors (see below), whose sum is σ = 284955084. Its totient is φ = 139977600.

The previous prime is 204134237. The next prime is 204134251. The reversal of 204134245 is 542431402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 75220929 + 128913316 = 8673^2 + 11354^2 .

It is not a de Polignac number, because 204134245 - 2³ = 204134237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416356 + ... + 416845.

It is an arithmetic number, because the mean of its divisors is an integer number (23746257).

Almost surely, 2^204134245 is an apocalyptic number.

It is an amenable number.

204134245 is a deficient number, since it is larger than the sum of its proper divisors (80820839).

204134245 is an equidigital number, since it uses as much as digits as its factorization.

204134245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 833220 (or 833213 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 204134245 is about 14287.5555991919. Note that the first 4 decimals coincide. The cubic root of 204134245 is about 588.8056322642.

Adding to 204134245 its reverse (542431402), we get a palindrome (746565647).

The spelling of 204134245 in words is "two hundred four million, one hundred thirty-four thousand, two hundred forty-five".