203171 has 4 divisors (see below), whose sum is σ = 204792. Its totient is φ = 201552.

The previous prime is 203141. The next prime is 203173. The reversal of 203171 is 171302.

203171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203171 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 203171.

It is not an unprimeable number, because it can be changed into a prime (203173) 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, 605 + ... + 878.

It is an arithmetic number, because the mean of its divisors is an integer number (51198).

2²⁰³¹⁷¹ is an apocalyptic number.

203171 is a deficient number, since it is larger than the sum of its proper divisors (1621).

203171 is a wasteful number, since it uses less digits than its factorization.

203171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 203171 is about 450.7449389622. The cubic root of 203171 is about 58.7878042487.

Adding to 203171 its reverse (171302), we get a palindrome (374473).

The spelling of 203171 in words is "two hundred three thousand, one hundred seventy-one", and thus it is an iban number.