18112727 has 2 divisors, whose sum is σ = 18112728. Its totient is φ = 18112726.

The previous prime is 18112663. The next prime is 18112741. The reversal of 18112727 is 72721181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18112727 - 2⁶ = 18112663 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18112727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18112777) 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, 9056363 + 9056364.

It is an arithmetic number, because the mean of its divisors is an integer number (9056364).

Almost surely, 2^18112727 is an apocalyptic number.

18112727 is a deficient number, since it is larger than the sum of its proper divisors (1).

18112727 is an equidigital number, since it uses as much as digits as its factorization.

18112727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1568, while the sum is 29.

The square root of 18112727 is about 4255.9049566455. The cubic root of 18112727 is about 262.6200907809.

The spelling of 18112727 in words is "eighteen million, one hundred twelve thousand, seven hundred twenty-seven".