16809103 has 2 divisors, whose sum is σ = 16809104. Its totient is φ = 16809102.

The previous prime is 16809101. The next prime is 16809193. The reversal of 16809103 is 30190861.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16809103 - 2¹ = 16809101 is a prime.

Together with 16809101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16809101) 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, 8404551 + 8404552.

It is an arithmetic number, because the mean of its divisors is an integer number (8404552).

Almost surely, 2^16809103 is an apocalyptic number.

16809103 is a deficient number, since it is larger than the sum of its proper divisors (1).

16809103 is an equidigital number, since it uses as much as digits as its factorization.

16809103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 16809103 is about 4099.8906082968. The cubic root of 16809103 is about 256.1620830266.

Adding to 16809103 its reverse (30190861), we get a palindrome (46999964).

The spelling of 16809103 in words is "sixteen million, eight hundred nine thousand, one hundred three".