1182042189 has 6 divisors (see below), whose sum is σ = 1707394286. Its totient is φ = 788028120.

The previous prime is 1182042187. The next prime is 1182042209. The reversal of 1182042189 is 9812402811.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1098922500 + 83119689 = 33150^2 + 9117^2 .

It is not a de Polignac number, because 1182042189 - 2¹ = 1182042187 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 (1182042187) 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 5 ways as a sum of consecutive naturals, for example, 65669002 + ... + 65669019.

Almost surely, 2^1182042189 is an apocalyptic number.

It is an amenable number.

1182042189 is a deficient number, since it is larger than the sum of its proper divisors (525352097).

1182042189 is a wasteful number, since it uses less digits than its factorization.

1182042189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131338027 (or 131338024 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 1182042189 is about 34380.8404347538. The cubic root of 1182042189 is about 1057.3310656824.

The spelling of 1182042189 in words is "one billion, one hundred eighty-two million, forty-two thousand, one hundred eighty-nine".