18144011 has 2 divisors, whose sum is σ = 18144012. Its totient is φ = 18144010.

The previous prime is 18144001. The next prime is 18144029. The reversal of 18144011 is 11044181.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18144011 - 2¹⁸ = 17881867 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18144001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9072005 + 9072006.

It is an arithmetic number, because the mean of its divisors is an integer number (9072006).

Almost surely, 2^18144011 is an apocalyptic number.

18144011 is a deficient number, since it is larger than the sum of its proper divisors (1).

18144011 is an equidigital number, since it uses as much as digits as its factorization.

18144011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 18144011 is about 4259.5787350394. The cubic root of 18144011 is about 262.7712014959.

Adding to 18144011 its reverse (11044181), we get a palindrome (29188192).

The spelling of 18144011 in words is "eighteen million, one hundred forty-four thousand, eleven".