18030117 has 8 divisors (see below), whose sum is σ = 27474496. Its totient is φ = 10302912.

The previous prime is 18030113. The next prime is 18030121. The reversal of 18030117 is 71103081.

It is an interprime number because it is at equal distance from previous prime (18030113) and next prime (18030121).

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

It is not a de Polignac number, because 18030117 - 2² = 18030113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 858577 = 18030117 / (1 + 8 + 0 + 3 + 0 + 1 + 1 + 7).

It is a junction number, because it is equal to n+sod(n) for n = 18030093 and 18030102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18030113) 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, 429268 + ... + 429309.

It is an arithmetic number, because the mean of its divisors is an integer number (3434312).

Almost surely, 2^18030117 is an apocalyptic number.

It is an amenable number.

18030117 is a deficient number, since it is larger than the sum of its proper divisors (9444379).

18030117 is an equidigital number, since it uses as much as digits as its factorization.

18030117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858587.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 18030117 is about 4246.1885261962. The cubic root of 18030117 is about 262.2202225488.

Adding to 18030117 its reverse (71103081), we get a palindrome (89133198).

The spelling of 18030117 in words is "eighteen million, thirty thousand, one hundred seventeen".