201017 has 4 divisors (see below), whose sum is σ = 202320. Its totient is φ = 199716.

The previous prime is 201011. The next prime is 201031. The reversal of 201017 is 710102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201017 - 2¹⁴ = 184633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200989 and 201007.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 201017.

It is not an unprimeable number, because it can be changed into a prime (201011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 740.

It is an arithmetic number, because the mean of its divisors is an integer number (50580).

2²⁰¹⁰¹⁷ is an apocalyptic number.

It is an amenable number.

201017 is a deficient number, since it is larger than the sum of its proper divisors (1303).

201017 is a wasteful number, since it uses less digits than its factorization.

201017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 201017 is about 448.3491942671. The cubic root of 201017 is about 58.5793114231.

Adding to 201017 its reverse (710102), we get a palindrome (911119).

The spelling of 201017 in words is "two hundred one thousand, seventeen", and thus it is an iban number.