317143 has 4 divisors (see below), whose sum is σ = 321048. Its totient is φ = 313240.

The previous prime is 317123. The next prime is 317159. The reversal of 317143 is 341713.

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

It is a cyclic number.

It is not a de Polignac number, because 317143 - 2¹³ = 308951 is a prime.

It is a Duffinian number.

317143 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 317143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317123) 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, 1828 + ... + 1993.

It is an arithmetic number, because the mean of its divisors is an integer number (80262).

2³¹⁷¹⁴³ is an apocalyptic number.

317143 is a deficient number, since it is larger than the sum of its proper divisors (3905).

317143 is an equidigital number, since it uses as much as digits as its factorization.

317143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3904.

The product of its digits is 252, while the sum is 19.

The square root of 317143 is about 563.1545081059. The cubic root of 317143 is about 68.1948706594.

Adding to 317143 its reverse (341713), we get a palindrome (658856).

The spelling of 317143 in words is "three hundred seventeen thousand, one hundred forty-three", and thus it is an iban number.