18063189 has 16 divisors (see below), whose sum is σ = 26958400. Its totient is φ = 11953008.

The previous prime is 18063187. The next prime is 18063203. The reversal of 18063189 is 98136081.

18063189 is a `hidden beast` number, since 18 + 0 + 631 + 8 + 9 = 666.

It is not a de Polignac number, because 18063189 - 2¹ = 18063187 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 (18063187) 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, 1347 + ... + 6159.

It is an arithmetic number, because the mean of its divisors is an integer number (1684900).

Almost surely, 2^18063189 is an apocalyptic number.

It is an amenable number.

18063189 is a deficient number, since it is larger than the sum of its proper divisors (8895211).

18063189 is a wasteful number, since it uses less digits than its factorization.

18063189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4961 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 18063189 is about 4250.0810580505. The cubic root of 18063189 is about 262.3804516858.

The spelling of 18063189 in words is "eighteen million, sixty-three thousand, one hundred eighty-nine".