168303 has 4 divisors (see below), whose sum is σ = 224408. Its totient is φ = 112200.

The previous prime is 168293. The next prime is 168323. The reversal of 168303 is 303861.

168303 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303861 = 3 ⋅101287.

It is a de Polignac number, because none of the positive numbers 2^k-168303 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 168303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168323) 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, 28048 + ... + 28053.

It is an arithmetic number, because the mean of its divisors is an integer number (56102).

2¹⁶⁸³⁰³ is an apocalyptic number.

168303 is a deficient number, since it is larger than the sum of its proper divisors (56105).

168303 is an equidigital number, since it uses as much as digits as its factorization.

168303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56104.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 168303 is about 410.2474862811. The cubic root of 168303 is about 55.2116363832.

The spelling of 168303 in words is "one hundred sixty-eight thousand, three hundred three".