18132017 has 8 divisors (see below), whose sum is σ = 18395520. Its totient is φ = 17870400.

The previous prime is 18132007. The next prime is 18132019. The reversal of 18132017 is 71023181.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18132017 is a prime.

It is a super-3 number, since 3×18132017³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18131983 and 18132001.

It is not an unprimeable number, because it can be changed into a prime (18132019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41084 + ... + 41522.

It is an arithmetic number, because the mean of its divisors is an integer number (2299440).

Almost surely, 2^18132017 is an apocalyptic number.

It is an amenable number.

18132017 is a deficient number, since it is larger than the sum of its proper divisors (263503).

18132017 is a wasteful number, since it uses less digits than its factorization.

18132017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 943.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 18132017 is about 4258.1706165911. The cubic root of 18132017 is about 262.7132875739.

Adding to 18132017 its reverse (71023181), we get a palindrome (89155198).

The spelling of 18132017 in words is "eighteen million, one hundred thirty-two thousand, seventeen".