189038199 has 16 divisors (see below), whose sum is σ = 288284672. Its totient is φ = 107936928.

The previous prime is 189038197. The next prime is 189038203. The reversal of 189038199 is 991830981.

It is not a de Polignac number, because 189038199 - 2¹ = 189038197 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 (189038197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32217 + ... + 37629.

It is an arithmetic number, because the mean of its divisors is an integer number (18017792).

Almost surely, 2^189038199 is an apocalyptic number.

189038199 is a deficient number, since it is larger than the sum of its proper divisors (99246473).

189038199 is a wasteful number, since it uses less digits than its factorization.

189038199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086.

The product of its (nonzero) digits is 139968, while the sum is 48.

The square root of 189038199 is about 13749.1162988754. The cubic root of 189038199 is about 573.9180146920.

The spelling of 189038199 in words is "one hundred eighty-nine million, thirty-eight thousand, one hundred ninety-nine".