16333 has 2 divisors, whose sum is σ = 16334. Its totient is φ = 16332.

The previous prime is 16319. The next prime is 16339. The reversal of 16333 is 33361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10404 + 5929 = 102^2 + 77^2 .

It is a cyclic number.

It is not a de Polignac number, because 16333 - 2⁵ = 16301 is a prime.

16333 is a modest number, since divided by 333 gives 16 as remainder.

16333 is a lucky number.

It is a nialpdrome in base 7 and base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16339) 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 as a sum of consecutive naturals, namely, 8166 + 8167.

It is an arithmetic number, because the mean of its divisors is an integer number (8167).

2¹⁶³³³ is an apocalyptic number.

It is an amenable number.

16333 is a deficient number, since it is larger than the sum of its proper divisors (1).

16333 is an equidigital number, since it uses as much as digits as its factorization.

16333 is an odious number, because the sum of its binary digits is odd.

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

The square root of 16333 is about 127.8006259766. The cubic root of 16333 is about 25.3720361022.

Adding to 16333 its reverse (33361), we get a palindrome (49694).

It can be divided in two parts, 163 and 33, that added together give a square (196 = 14²).

The spelling of 16333 in words is "sixteen thousand, three hundred thirty-three".