313143 has 4 divisors (see below), whose sum is σ = 417528. Its totient is φ = 208760.

The previous prime is 313133. The next prime is 313147. The reversal of 313143 is 341313.

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 313143 - 2⁴ = 313127 is a prime.

It is a D-number.

313143 is a lucky number.

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 313143.

It is not an unprimeable number, because it can be changed into a prime (313147) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 52188 + ... + 52193.

It is an arithmetic number, because the mean of its divisors is an integer number (104382).

2³¹³¹⁴³ is an apocalyptic number.

313143 is a deficient number, since it is larger than the sum of its proper divisors (104385).

313143 is a wasteful number, since it uses less digits than its factorization.

313143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104384.

The product of its digits is 108, while the sum is 15.

The square root of 313143 is about 559.5918155227. The cubic root of 313143 is about 67.9069517429.

Adding to 313143 its reverse (341313), we get a palindrome (654456).

The spelling of 313143 in words is "three hundred thirteen thousand, one hundred forty-three".