18103016 has 8 divisors (see below), whose sum is σ = 33943170. Its totient is φ = 9051504.

The previous prime is 18103003. The next prime is 18103049. The reversal of 18103016 is 61030181.

It can be written as a sum of positive squares in only one way, i.e., 10562500 + 7540516 = 3250^2 + 2746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 1131431 + ... + 1131446.

Almost surely, 2^18103016 is an apocalyptic number.

It is an amenable number.

18103016 is a deficient number, since it is larger than the sum of its proper divisors (15840154).

18103016 is a wasteful number, since it uses less digits than its factorization.

18103016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262883 (or 2262879 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 18103016 is about 4254.7639182451. The cubic root of 18103016 is about 262.5731484731.

Adding to 18103016 its reverse (61030181), we get a palindrome (79133197).

The spelling of 18103016 in words is "eighteen million, one hundred three thousand, sixteen".