189234871 has 32 divisors (see below), whose sum is σ = 235699200. Its totient is φ = 148262400.

The previous prime is 189234863. The next prime is 189234883. The reversal of 189234871 is 178432981.

It is a cyclic number.

It is not a de Polignac number, because 189234871 - 2³ = 189234863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189234821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 950830 + ... + 951028.

It is an arithmetic number, because the mean of its divisors is an integer number (7365600).

Almost surely, 2^189234871 is an apocalyptic number.

189234871 is a deficient number, since it is larger than the sum of its proper divisors (46464329).

189234871 is a wasteful number, since it uses less digits than its factorization.

189234871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415.

The product of its digits is 96768, while the sum is 43.

The square root of 189234871 is about 13756.2666083498. The cubic root of 189234871 is about 574.1169770941.

It can be divided in two parts, 1892 and 34871, that added together give a palindrome (36763).

The spelling of 189234871 in words is "one hundred eighty-nine million, two hundred thirty-four thousand, eight hundred seventy-one".