189732147 has 16 divisors (see below), whose sum is σ = 278087040. Its totient is φ = 114108800.

The previous prime is 189732139. The next prime is 189732161. The reversal of 189732147 is 741237981.

It is a cyclic number.

It is not a de Polignac number, because 189732147 - 2³ = 189732139 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 189732099 and 189732108.

It is not an unprimeable number, because it can be changed into a prime (189732187) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17622 + ... + 26267.

It is an arithmetic number, because the mean of its divisors is an integer number (17380440).

Almost surely, 2^189732147 is an apocalyptic number.

189732147 is a deficient number, since it is larger than the sum of its proper divisors (88354893).

189732147 is a wasteful number, since it uses less digits than its factorization.

189732147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44034.

The product of its digits is 84672, while the sum is 42.

The square root of 189732147 is about 13774.3292758668. The cubic root of 189732147 is about 574.6194300869.

The spelling of 189732147 in words is "one hundred eighty-nine million, seven hundred thirty-two thousand, one hundred forty-seven".