189178056 has 24 divisors (see below), whose sum is σ = 512357430. Its totient is φ = 63059328.

The previous prime is 189178037. The next prime is 189178063. The reversal of 189178056 is 650871981.

It can be written as a sum of positive squares in only one way, i.e., 173448900 + 15729156 = 13170^2 + 3966^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 1313665 + ... + 1313808.

Almost surely, 2^189178056 is an apocalyptic number.

It is an amenable number.

189178056 is an abundant number, since it is smaller than the sum of its proper divisors (323179374).

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

189178056 is a wasteful number, since it uses less digits than its factorization.

189178056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2627485 (or 2627478 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 45.

The square root of 189178056 is about 13754.2013944831. The cubic root of 189178056 is about 574.0595146035.

The spelling of 189178056 in words is "one hundred eighty-nine million, one hundred seventy-eight thousand, fifty-six".