204134251 has 2 divisors, whose sum is σ = 204134252. Its totient is φ = 204134250.

The previous prime is 204134237. The next prime is 204134297. The reversal of 204134251 is 152431402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 204134251 - 2¹³ = 204126059 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (204132251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102067125 + 102067126.

It is an arithmetic number, because the mean of its divisors is an integer number (102067126).

Almost surely, 2^204134251 is an apocalyptic number.

204134251 is a deficient number, since it is larger than the sum of its proper divisors (1).

204134251 is an equidigital number, since it uses as much as digits as its factorization.

204134251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 204134251 is about 14287.5558091648. Note that the first 3 decimals coincide. The cubic root of 204134251 is about 588.8056380330.

Adding to 204134251 its reverse (152431402), we get a palindrome (356565653).

The spelling of 204134251 in words is "two hundred four million, one hundred thirty-four thousand, two hundred fifty-one".