317142 has 32 divisors (see below), whose sum is σ = 806400. Its totient is φ = 90504.

The previous prime is 317123. The next prime is 317159. The reversal of 317142 is 241713.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 317142.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42 + ... + 797.

It is an arithmetic number, because the mean of its divisors is an integer number (25200).

2³¹⁷¹⁴² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (403200).

317142 is an abundant number, since it is smaller than the sum of its proper divisors (489258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

317142 is a wasteful number, since it uses less digits than its factorization.

317142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 851 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 317142 is about 563.1536202494. The cubic root of 317142 is about 68.1947989830.

Adding to 317142 its reverse (241713), we get a palindrome (558855).

The spelling of 317142 in words is "three hundred seventeen thousand, one hundred forty-two", and thus it is an iban number.