1803066189 has 16 divisors (see below), whose sum is σ = 2546615232. Its totient is φ = 1130842368.

The previous prime is 1803066173. The next prime is 1803066193. The reversal of 1803066189 is 9816603081.

It is not a de Polignac number, because 1803066189 - 2⁴ = 1803066173 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1803066189.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1803066589) 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, 136647 + ... + 149259.

It is an arithmetic number, because the mean of its divisors is an integer number (159163452).

Almost surely, 2^1803066189 is an apocalyptic number.

It is an amenable number.

1803066189 is a deficient number, since it is larger than the sum of its proper divisors (743549043).

1803066189 is a wasteful number, since it uses less digits than its factorization.

1803066189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15436.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 1803066189 is about 42462.5268795911. The cubic root of 1803066189 is about 1217.1307176932.

The spelling of 1803066189 in words is "one billion, eight hundred three million, sixty-six thousand, one hundred eighty-nine".