189535801 has 32 divisors (see below), whose sum is σ = 245564928. Its totient is φ = 142179840.

The previous prime is 189535799. The next prime is 189535807. The reversal of 189535801 is 108535981.

It is a cyclic number.

It is not a de Polignac number, because 189535801 - 2¹ = 189535799 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (189535807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 286411 + ... + 287071.

It is an arithmetic number, because the mean of its divisors is an integer number (7673904).

Almost surely, 2^189535801 is an apocalyptic number.

It is an amenable number.

189535801 is a deficient number, since it is larger than the sum of its proper divisors (56029127).

189535801 is a wasteful number, since it uses less digits than its factorization.

189535801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841.

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 189535801 is about 13767.2001874019. The cubic root of 189535801 is about 574.4211449959.

The spelling of 189535801 in words is "one hundred eighty-nine million, five hundred thirty-five thousand, eight hundred one".