613303 has 4 divisors (see below), whose sum is σ = 626400. Its totient is φ = 600208.

The previous prime is 613297. The next prime is 613337. The reversal of 613303 is 303316.

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 613303 - 2⁹ = 612791 is a prime.

It is a super-2 number, since 2×613303² = 752281139618, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6478 + ... + 6571.

It is an arithmetic number, because the mean of its divisors is an integer number (156600).

2⁶¹³³⁰³ is an apocalyptic number.

613303 is a deficient number, since it is larger than the sum of its proper divisors (13097).

613303 is a wasteful number, since it uses less digits than its factorization.

613303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13096.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 613303 is about 783.1366419725. The cubic root of 613303 is about 84.9620591917.

Adding to 613303 its reverse (303316), we get a palindrome (916619).

It can be divided in two parts, 61 and 3303, that added together give a square (3364 = 58²).

The spelling of 613303 in words is "six hundred thirteen thousand, three hundred three".