189135433 has 8 divisors (see below), whose sum is σ = 195405056. Its totient is φ = 182876400.

The previous prime is 189135431. The next prime is 189135437. The reversal of 189135433 is 334531981.

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

It is a cyclic number.

It is not a de Polignac number, because 189135433 - 2¹ = 189135431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189135392 and 189135401.

It is not an unprimeable number, because it can be changed into a prime (189135431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51643 + ... + 55183.

It is an arithmetic number, because the mean of its divisors is an integer number (24425632).

Almost surely, 2^189135433 is an apocalyptic number.

It is an amenable number.

189135433 is a deficient number, since it is larger than the sum of its proper divisors (6269623).

189135433 is a wasteful number, since it uses less digits than its factorization.

189135433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5295.

The product of its digits is 38880, while the sum is 37.

The square root of 189135433 is about 13752.6518533700. The cubic root of 189135433 is about 574.0163982980.

The spelling of 189135433 in words is "one hundred eighty-nine million, one hundred thirty-five thousand, four hundred thirty-three".