189043473 has 8 divisors (see below), whose sum is σ = 252475648. Its totient is φ = 125820144.

The previous prime is 189043469. The next prime is 189043507. The reversal of 189043473 is 374340981.

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

It is not a de Polignac number, because 189043473 - 2² = 189043469 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189043273) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 50086 + ... + 53727.

It is an arithmetic number, because the mean of its divisors is an integer number (31559456).

Almost surely, 2^189043473 is an apocalyptic number.

It is an amenable number.

189043473 is a deficient number, since it is larger than the sum of its proper divisors (63432175).

189043473 is a wasteful number, since it uses less digits than its factorization.

189043473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104423.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 189043473 is about 13749.3080916823. The cubic root of 189043473 is about 573.9233519121.

The spelling of 189043473 in words is "one hundred eighty-nine million, forty-three thousand, four hundred seventy-three".