18064903 has 2 divisors, whose sum is σ = 18064904. Its totient is φ = 18064902.

The previous prime is 18064901. The next prime is 18064973. The reversal of 18064903 is 30946081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18064903 - 2¹ = 18064901 is a prime.

Together with 18064901, 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 (18064901) 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, 9032451 + 9032452.

It is an arithmetic number, because the mean of its divisors is an integer number (9032452).

Almost surely, 2^18064903 is an apocalyptic number.

18064903 is a deficient number, since it is larger than the sum of its proper divisors (1).

18064903 is an equidigital number, since it uses as much as digits as its factorization.

18064903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 18064903 is about 4250.2826964803. The cubic root of 18064903 is about 262.3887504395.

The spelling of 18064903 in words is "eighteen million, sixty-four thousand, nine hundred three".