18414811 has 2 divisors, whose sum is σ = 18414812. Its totient is φ = 18414810.

The previous prime is 18414763. The next prime is 18414827. The reversal of 18414811 is 11841481.

18414811 is nontrivially palindromic in base 15.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18414811 - 2¹¹ = 18412763 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 18414811.

It is not a weakly prime, because it can be changed into another prime (18414511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9207405 + 9207406.

It is an arithmetic number, because the mean of its divisors is an integer number (9207406).

Almost surely, 2^18414811 is an apocalyptic number.

18414811 is a deficient number, since it is larger than the sum of its proper divisors (1).

18414811 is an equidigital number, since it uses as much as digits as its factorization.

18414811 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1024, while the sum is 28.

The square root of 18414811 is about 4291.2481867168. The cubic root of 18414811 is about 264.0720409073.

The spelling of 18414811 in words is "eighteen million, four hundred fourteen thousand, eight hundred eleven".