7042189 has 8 divisors (see below), whose sum is σ = 8779968. Its totient is φ = 5487360.

The previous prime is 7042183. The next prime is 7042193. The reversal of 7042189 is 9812407.

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 7042189 - 2¹³ = 7033997 is a prime.

It is a Duffinian number.

7042189 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 7042189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7042183) 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, 45652 + ... + 45805.

It is an arithmetic number, because the mean of its divisors is an integer number (1097496).

Almost surely, 2^7042189 is an apocalyptic number.

It is an amenable number.

7042189 is a deficient number, since it is larger than the sum of its proper divisors (1737779).

7042189 is a wasteful number, since it uses less digits than its factorization.

7042189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91475.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 7042189 is about 2653.7123054318. The cubic root of 7042189 is about 191.6766566522.

The spelling of 7042189 in words is "seven million, forty-two thousand, one hundred eighty-nine".