30106189 has 8 divisors (see below), whose sum is σ = 30672000. Its totient is φ = 29545152.

The previous prime is 30106187. The next prime is 30106199. The reversal of 30106189 is 98160103.

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 not a de Polignac number, because 30106189 - 2¹ = 30106187 is a prime.

It is a super-2 number, since 2×30106189² = 1812765232207442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30106183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13077 + ... + 15205.

It is an arithmetic number, because the mean of its divisors is an integer number (3834000).

Almost surely, 2^30106189 is an apocalyptic number.

It is an amenable number.

30106189 is a deficient number, since it is larger than the sum of its proper divisors (565811).

30106189 is a wasteful number, since it uses less digits than its factorization.

30106189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 30106189 is about 5486.9106972868. The cubic root of 30106189 is about 311.0894343410.

The spelling of 30106189 in words is "thirty million, one hundred six thousand, one hundred eighty-nine".