189044133 has 4 divisors (see below), whose sum is σ = 252058848. Its totient is φ = 126029420.

The previous prime is 189044117. The next prime is 189044159. The reversal of 189044133 is 331440981.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 331440981 = 3 ⋅110480327.

It is a cyclic number.

It is not a de Polignac number, because 189044133 - 2⁴ = 189044117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189044094 and 189044103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189044113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31507353 + ... + 31507358.

It is an arithmetic number, because the mean of its divisors is an integer number (63014712).

Almost surely, 2^189044133 is an apocalyptic number.

It is an amenable number.

189044133 is a deficient number, since it is larger than the sum of its proper divisors (63014715).

189044133 is an equidigital number, since it uses as much as digits as its factorization.

189044133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63014714.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 189044133 is about 13749.3320928691. The cubic root of 189044133 is about 573.9240198167.

The spelling of 189044133 in words is "one hundred eighty-nine million, forty-four thousand, one hundred thirty-three".