18052117 has 2 divisors, whose sum is σ = 18052118. Its totient is φ = 18052116.

The previous prime is 18052103. The next prime is 18052127. The reversal of 18052117 is 71125081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14699556 + 3352561 = 3834^2 + 1831^2 .

It is a cyclic number.

It is not a de Polignac number, because 18052117 - 2⁷ = 18051989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18052091 and 18052100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18052127) 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 as a sum of consecutive naturals, namely, 9026058 + 9026059.

It is an arithmetic number, because the mean of its divisors is an integer number (9026059).

Almost surely, 2^18052117 is an apocalyptic number.

It is an amenable number.

18052117 is a deficient number, since it is larger than the sum of its proper divisors (1).

18052117 is an equidigital number, since it uses as much as digits as its factorization.

18052117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 18052117 is about 4248.7782949926. The cubic root of 18052117 is about 262.3268312144.

Adding to 18052117 its reverse (71125081), we get a palindrome (89177198).

The spelling of 18052117 in words is "eighteen million, fifty-two thousand, one hundred seventeen".