189198134 has 8 divisors (see below), whose sum is σ = 300491208. Its totient is φ = 89034400.

The previous prime is 189198133. The next prime is 189198157. The reversal of 189198134 is 431891981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189198133) 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 3 ways as a sum of consecutive naturals, for example, 2782292 + ... + 2782359.

It is an arithmetic number, because the mean of its divisors is an integer number (37561401).

Almost surely, 2^189198134 is an apocalyptic number.

189198134 is a deficient number, since it is larger than the sum of its proper divisors (111293074).

189198134 is a wasteful number, since it uses less digits than its factorization.

189198134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5564670.

The product of its digits is 62208, while the sum is 44.

The square root of 189198134 is about 13754.9312611877. The cubic root of 189198134 is about 574.0798227362.

The spelling of 189198134 in words is "one hundred eighty-nine million, one hundred ninety-eight thousand, one hundred thirty-four".