16303 has 8 divisors (see below), whose sum is σ = 19872. Its totient is φ = 13056.

The previous prime is 16301. The next prime is 16319. The reversal of 16303 is 30361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16303 - 2¹ = 16301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51 + ... + 187.

It is an arithmetic number, because the mean of its divisors is an integer number (2484).

2¹⁶³⁰³ is an apocalyptic number.

16303 is a deficient number, since it is larger than the sum of its proper divisors (3569).

16303 is a wasteful number, since it uses less digits than its factorization.

16303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 16303 is about 127.6832017142. The cubic root of 16303 is about 25.3564923648.

Subtracting from 16303 its sum of digits (13), we obtain a triangular number (16290 = T₁₈₀).

Adding to 16303 its reverse (30361), we get a palindrome (46664).

The spelling of 16303 in words is "sixteen thousand, three hundred three".