6221542189 has 8 divisors (see below), whose sum is σ = 6238363392. Its totient is φ = 6204744960.

The previous prime is 6221542181. The next prime is 6221542199. The reversal of 6221542189 is 9812451226.

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 6221542189 - 2³ = 6221542181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221542181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 591117 + ... + 601549.

It is an arithmetic number, because the mean of its divisors is an integer number (779795424).

Almost surely, 2^6221542189 is an apocalyptic number.

It is an amenable number.

6221542189 is a deficient number, since it is larger than the sum of its proper divisors (16821203).

6221542189 is a wasteful number, since it uses less digits than its factorization.

6221542189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11987.

The product of its digits is 69120, while the sum is 40.

The square root of 6221542189 is about 78876.7531595970. The cubic root of 6221542189 is about 1839.2157760951.

The spelling of 6221542189 in words is "six billion, two hundred twenty-one million, five hundred forty-two thousand, one hundred eighty-nine".