18456103 has 2 divisors, whose sum is σ = 18456104. Its totient is φ = 18456102.

The previous prime is 18456091. The next prime is 18456107. The reversal of 18456103 is 30165481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18456103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18456107) 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, 9228051 + 9228052.

It is an arithmetic number, because the mean of its divisors is an integer number (9228052).

Almost surely, 2^18456103 is an apocalyptic number.

18456103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18456103 is an equidigital number, since it uses as much as digits as its factorization.

18456103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 18456103 is about 4296.0566802592. The cubic root of 18456103 is about 264.2692720509.

The spelling of 18456103 in words is "eighteen million, four hundred fifty-six thousand, one hundred three".