18375103 has 2 divisors, whose sum is σ = 18375104. Its totient is φ = 18375102.

The previous prime is 18375101. The next prime is 18375107. The reversal of 18375103 is 30157381.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18375103 - 2¹ = 18375101 is a prime.

Together with 18375101, 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 (18375101) 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, 9187551 + 9187552.

It is an arithmetic number, because the mean of its divisors is an integer number (9187552).

Almost surely, 2^18375103 is an apocalyptic number.

18375103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18375103 is an equidigital number, since it uses as much as digits as its factorization.

18375103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 18375103 is about 4286.6190640177. The cubic root of 18375103 is about 263.8820974520.

The spelling of 18375103 in words is "eighteen million, three hundred seventy-five thousand, one hundred three".