85184189 has 4 divisors (see below), whose sum is σ = 85263360. Its totient is φ = 85105020.

The previous prime is 85184171. The next prime is 85184213. The reversal of 85184189 is 98148158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85184189 - 2²⁰ = 84135613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85184149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37949 + ... + 40130.

It is an arithmetic number, because the mean of its divisors is an integer number (21315840).

Almost surely, 2^85184189 is an apocalyptic number.

It is an amenable number.

85184189 is a deficient number, since it is larger than the sum of its proper divisors (79171).

85184189 is a wasteful number, since it uses less digits than its factorization.

85184189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79170.

The product of its digits is 92160, while the sum is 44.

The square root of 85184189 is about 9229.5281027797. The cubic root of 85184189 is about 440.0003254130. Note that the first 3 decimals are identical.

The spelling of 85184189 in words is "eighty-five million, one hundred eighty-four thousand, one hundred eighty-nine".