16318933 has 2 divisors, whose sum is σ = 16318934. Its totient is φ = 16318932.

The previous prime is 16318871. The next prime is 16318957. The reversal of 16318933 is 33981361.

16318933 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12659364 + 3659569 = 3558^2 + 1913^2 .

It is an emirp because it is prime and its reverse (33981361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16318933 - 2¹³ = 16310741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16318333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8159466 + 8159467.

It is an arithmetic number, because the mean of its divisors is an integer number (8159467).

Almost surely, 2^16318933 is an apocalyptic number.

It is an amenable number.

16318933 is a deficient number, since it is larger than the sum of its proper divisors (1).

16318933 is an equidigital number, since it uses as much as digits as its factorization.

16318933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 16318933 is about 4039.6699122577. The cubic root of 16318933 is about 253.6475001582.

The spelling of 16318933 in words is "sixteen million, three hundred eighteen thousand, nine hundred thirty-three".