18110017 has 2 divisors, whose sum is σ = 18110018. Its totient is φ = 18110016.

The previous prime is 18109999. The next prime is 18110063. The reversal of 18110017 is 71001181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16941456 + 1168561 = 4116^2 + 1081^2 .

It is an emirp because it is prime and its reverse (71001181) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18110017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18109976 and 18110003.

It is not a weakly prime, because it can be changed into another prime (18110077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9055008 + 9055009.

It is an arithmetic number, because the mean of its divisors is an integer number (9055009).

Almost surely, 2^18110017 is an apocalyptic number.

It is an amenable number.

18110017 is a deficient number, since it is larger than the sum of its proper divisors (1).

18110017 is an equidigital number, since it uses as much as digits as its factorization.

18110017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 19.

The square root of 18110017 is about 4255.5865635656. The cubic root of 18110017 is about 262.6069925149.

Adding to 18110017 its reverse (71001181), we get a palindrome (89111198).

The spelling of 18110017 in words is "eighteen million, one hundred ten thousand, seventeen".