16369 has 2 divisors, whose sum is σ = 16370.
Its totient is φ = 16368.
The previous prime is 16363. The next prime is 16381. The reversal of 16369 is 96361.
It can be divided in two parts, 163 and 69, that added together give a palindrome (232).
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 12769 + 3600 = 113^2 + 60^2
It is a cyclic number.
It is not a de Polignac number, because 16369 - 23 = 16361 is a prime.
It is a super-2 number, since 2×163692 = 535888322, which contains 22 as substring.
It is an alternating number because its digits alternate between odd and even.
It is not a weakly prime, because it can be changed into another prime (16361) 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, 8184 + 8185.
It is equal to the Eulerian number A(14, 1).
It is an arithmetic number, because the mean of its divisors is an integer number (8185).
216369 is an apocalyptic number.
It is an amenable number.
16369 is a deficient number, since it is larger than the sum of its proper divisors (1).
16369 is an equidigital number, since it uses as much as digits as its factorization.
16369 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 972, while the sum is 25.
The square root of 16369 is about 127.9413928328.
The cubic root of 16369 is about 25.3906634832.
The spelling of 16369 in words is "sixteen thousand, three hundred sixty-nine".