313543 has 2 divisors, whose sum is σ = 313544. Its totient is φ = 313542.

The previous prime is 313517. The next prime is 313549. The reversal of 313543 is 345313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313543 - 2⁹ = 313031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313549) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156771 + 156772.

It is an arithmetic number, because the mean of its divisors is an integer number (156772).

2³¹³⁵⁴³ is an apocalyptic number.

313543 is a deficient number, since it is larger than the sum of its proper divisors (1).

313543 is an equidigital number, since it uses as much as digits as its factorization.

313543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 19.

The square root of 313543 is about 559.9491048301. The cubic root of 313543 is about 67.9358535793.

Adding to 313543 its reverse (345313), we get a palindrome (658856).

The spelling of 313543 in words is "three hundred thirteen thousand, five hundred forty-three".