2118189 has 16 divisors (see below), whose sum is σ = 2963520. Its totient is φ = 1344000.

The previous prime is 2118187. The next prime is 2118209. The reversal of 2118189 is 9818112.

It is not a de Polignac number, because 2118189 - 2¹ = 2118187 is a prime.

It is a super-3 number, since 3×2118189³ = 28511192333657955807, which contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8314 + ... + 8564.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

2^2118189 is an apocalyptic number.

2118189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2118189 is a deficient number, since it is larger than the sum of its proper divisors (845331).

2118189 is a wasteful number, since it uses less digits than its factorization.

2118189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380.

The product of its digits is 1152, while the sum is 30.

The square root of 2118189 is about 1455.3999450323. The cubic root of 2118189 is about 128.4265756658.

The spelling of 2118189 in words is "two million, one hundred eighteen thousand, one hundred eighty-nine".