18144003 has 8 divisors (see below), whose sum is σ = 24211728. Its totient is φ = 12086144.

The previous prime is 18144001. The next prime is 18144011. The reversal of 18144003 is 30044181.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18144003 - 2¹ = 18144001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18144001) 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 in 7 ways as a sum of consecutive naturals, for example, 5575 + ... + 8207.

It is an arithmetic number, because the mean of its divisors is an integer number (3026466).

Almost surely, 2^18144003 is an apocalyptic number.

18144003 is a deficient number, since it is larger than the sum of its proper divisors (6067725).

18144003 is a wasteful number, since it uses less digits than its factorization.

18144003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4933.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 18144003 is about 4259.5777959793. The cubic root of 18144003 is about 262.7711628758.

Adding to 18144003 its reverse (30044181), we get a palindrome (48188184).

The spelling of 18144003 in words is "eighteen million, one hundred forty-four thousand, three".