18189134 has 8 divisors (see below), whose sum is σ = 27320328. Its totient is φ = 9082360.

The previous prime is 18189131. The next prime is 18189161. The reversal of 18189134 is 43198181.

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

It is a super-3 number, since 3×18189134³ (a number of 23 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 18189094 and 18189103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18189131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4112 + ... + 7299.

It is an arithmetic number, because the mean of its divisors is an integer number (3415041).

Almost surely, 2^18189134 is an apocalyptic number.

18189134 is a deficient number, since it is larger than the sum of its proper divisors (9131194).

18189134 is a wasteful number, since it uses less digits than its factorization.

18189134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12210.

The product of its digits is 6912, while the sum is 35.

The square root of 18189134 is about 4264.8720965581. The cubic root of 18189134 is about 262.9888529156.

The spelling of 18189134 in words is "eighteen million, one hundred eighty-nine thousand, one hundred thirty-four".