189019158 has 32 divisors (see below), whose sum is σ = 414084960. Its totient is φ = 57254400.

The previous prime is 189019133. The next prime is 189019169. The reversal of 189019158 is 851910981.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28993 + ... + 34908.

It is an arithmetic number, because the mean of its divisors is an integer number (12940155).

Almost surely, 2^189019158 is an apocalyptic number.

189019158 is an abundant number, since it is smaller than the sum of its proper divisors (225065802).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189019158 is a wasteful number, since it uses less digits than its factorization.

189019158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63952.

The product of its (nonzero) digits is 25920, while the sum is 42.

The square root of 189019158 is about 13748.4238369349. The cubic root of 189019158 is about 573.8987446187.

The spelling of 189019158 in words is "one hundred eighty-nine million, nineteen thousand, one hundred fifty-eight".