18427103 has 2 divisors, whose sum is σ = 18427104. Its totient is φ = 18427102.

The previous prime is 18427049. The next prime is 18427141. The reversal of 18427103 is 30172481.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18427103 - 2⁶ = 18427039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18427193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9213551 + 9213552.

It is an arithmetic number, because the mean of its divisors is an integer number (9213552).

Almost surely, 2^18427103 is an apocalyptic number.

18427103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18427103 is an equidigital number, since it uses as much as digits as its factorization.

18427103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 18427103 is about 4292.6801651183. The cubic root of 18427103 is about 264.1307844111.

Adding to 18427103 its reverse (30172481), we get a palindrome (48599584).

It can be divided in two parts, 18427 and 103, that multiplied together give a palindrome (1897981).

The spelling of 18427103 in words is "eighteen million, four hundred twenty-seven thousand, one hundred three".