201017417 has 2 divisors, whose sum is σ = 201017418. Its totient is φ = 201017416.

The previous prime is 201017381. The next prime is 201017419. The reversal of 201017417 is 714710102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119006281 + 82011136 = 10909^2 + 9056^2 .

It is a cyclic number.

It is not a de Polignac number, because 201017417 - 2⁸ = 201017161 is a prime.

Together with 201017419, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 201017392 and 201017401.

It is not a weakly prime, because it can be changed into another prime (201017419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100508708 + 100508709.

It is an arithmetic number, because the mean of its divisors is an integer number (100508709).

Almost surely, 2^201017417 is an apocalyptic number.

It is an amenable number.

201017417 is a deficient number, since it is larger than the sum of its proper divisors (1).

201017417 is an equidigital number, since it uses as much as digits as its factorization.

201017417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 392, while the sum is 23.

The square root of 201017417 is about 14178.0611156815. The cubic root of 201017417 is about 585.7935192972.

Adding to 201017417 its reverse (714710102), we get a palindrome (915727519).

The spelling of 201017417 in words is "two hundred one million, seventeen thousand, four hundred seventeen".