18112663 has 2 divisors, whose sum is σ = 18112664. Its totient is φ = 18112662.

The previous prime is 18112637. The next prime is 18112727. The reversal of 18112663 is 36621181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18112663 - 2¹⁷ = 17981591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18112763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056331 + 9056332.

It is an arithmetic number, because the mean of its divisors is an integer number (9056332).

Almost surely, 2^18112663 is an apocalyptic number.

18112663 is a deficient number, since it is larger than the sum of its proper divisors (1).

18112663 is an equidigital number, since it uses as much as digits as its factorization.

18112663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 28.

The square root of 18112663 is about 4255.8974376740. The cubic root of 18112663 is about 262.6197814642.

The spelling of 18112663 in words is "eighteen million, one hundred twelve thousand, six hundred sixty-three".