18142011 has 6 divisors (see below), whose sum is σ = 26205140. Its totient is φ = 12094668.

The previous prime is 18141997. The next prime is 18142021. The reversal of 18142011 is 11024181.

It is not a de Polignac number, because 18142011 - 2⁶ = 18141947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18142021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1007881 + ... + 1007898.

Almost surely, 2^18142011 is an apocalyptic number.

18142011 is a deficient number, since it is larger than the sum of its proper divisors (8063129).

18142011 is a wasteful number, since it uses less digits than its factorization.

18142011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2015785 (or 2015782 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 18142011 is about 4259.3439635700. The cubic root of 18142011 is about 262.7615461205.

Adding to 18142011 its reverse (11024181), we get a palindrome (29166192).

The spelling of 18142011 in words is "eighteen million, one hundred forty-two thousand, eleven".