30189 has 8 divisors (see below), whose sum is σ = 41760. Its totient is φ = 19376.

The previous prime is 30187. The next prime is 30197. The reversal of 30189 is 98103.

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

It is a cyclic number.

It is not a de Polignac number, because 30189 - 2¹ = 30187 is a prime.

It is a super-2 number, since 2×30189² = 1822751442, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30181) 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, 87 + ... + 260.

It is an arithmetic number, because the mean of its divisors is an integer number (5220).

2³⁰¹⁸⁹ is an apocalyptic number.

It is an amenable number.

30189 is a deficient number, since it is larger than the sum of its proper divisors (11571).

30189 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 13 representation: 30189 = (10983)₁₃.

30189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 30189 is about 173.7498201438. The cubic root of 30189 is about 31.1374403908.

The spelling of 30189 in words is "thirty thousand, one hundred eighty-nine".