6549189 has 4 divisors (see below), whose sum is σ = 8732256. Its totient is φ = 4366124.

The previous prime is 6549187. The next prime is 6549197. The reversal of 6549189 is 9819456.

6549189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6549189 - 2¹ = 6549187 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 6549189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6549187) 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, 1091529 + ... + 1091534.

It is an arithmetic number, because the mean of its divisors is an integer number (2183064).

Almost surely, 2^6549189 is an apocalyptic number.

It is an amenable number.

6549189 is a deficient number, since it is larger than the sum of its proper divisors (2183067).

6549189 is a wasteful number, since it uses less digits than its factorization.

6549189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183066.

The product of its digits is 77760, while the sum is 42.

The square root of 6549189 is about 2559.1383315483. The cubic root of 6549189 is about 187.0951406590.

The spelling of 6549189 in words is "six million, five hundred forty-nine thousand, one hundred eighty-nine".