18768103 has 2 divisors, whose sum is σ = 18768104. Its totient is φ = 18768102.

The previous prime is 18768097. The next prime is 18768137. The reversal of 18768103 is 30186781.

18768103 is nontrivially palindromic in base 13.

It is an a-pointer prime, because the next prime (18768137) can be obtained adding 18768103 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18768103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18768163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9384051 + 9384052.

It is an arithmetic number, because the mean of its divisors is an integer number (9384052).

Almost surely, 2^18768103 is an apocalyptic number.

18768103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18768103 is an equidigital number, since it uses as much as digits as its factorization.

18768103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 18768103 is about 4332.2168689944. The cubic root of 18768103 is about 265.7501139411.

The spelling of 18768103 in words is "eighteen million, seven hundred sixty-eight thousand, one hundred three".