189535 has 4 divisors (see below), whose sum is σ = 227448. Its totient is φ = 151624.

The previous prime is 189529. The next prime is 189547. The reversal of 189535 is 535981.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535981 = 607 ⋅883.

It is a cyclic number.

It is not a de Polignac number, because 189535 - 2⁷ = 189407 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 189497 and 189506.

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 3 ways as a sum of consecutive naturals, for example, 18949 + ... + 18958.

It is an arithmetic number, because the mean of its divisors is an integer number (56862).

2¹⁸⁹⁵³⁵ is an apocalyptic number.

189535 is a deficient number, since it is larger than the sum of its proper divisors (37913).

189535 is an equidigital number, since it uses as much as digits as its factorization.

189535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37912.

The product of its digits is 5400, while the sum is 31.

The square root of 189535 is about 435.3561760214. The cubic root of 189535 is about 57.4420335805.

The spelling of 189535 in words is "one hundred eighty-nine thousand, five hundred thirty-five".