204125017 has 2 divisors, whose sum is σ = 204125018. Its totient is φ = 204125016.

The previous prime is 204125003. The next prime is 204125021. The reversal of 204125017 is 710521402.

It is a happy number.

204125017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 168376576 + 35748441 = 12976^2 + 5979^2 .

It is a cyclic number.

It is not a de Polignac number, because 204125017 - 2¹⁵ = 204092249 is a prime.

It is not a weakly prime, because it can be changed into another prime (204125087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102062508 + 102062509.

It is an arithmetic number, because the mean of its divisors is an integer number (102062509).

Almost surely, 2^204125017 is an apocalyptic number.

It is an amenable number.

204125017 is a deficient number, since it is larger than the sum of its proper divisors (1).

204125017 is an equidigital number, since it uses as much as digits as its factorization.

204125017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 204125017 is about 14287.2326571663. The cubic root of 204125017 is about 588.7967597038.

Adding to 204125017 its reverse (710521402), we get a palindrome (914646419).

The spelling of 204125017 in words is "two hundred four million, one hundred twenty-five thousand, seventeen".