20075189 has 4 divisors (see below), whose sum is σ = 20086080. Its totient is φ = 20064300.

The previous prime is 20075183. The next prime is 20075207. The reversal of 20075189 is 98157002.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20075189 - 2¹⁶ = 20009653 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 (20075183) 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, 1919 + ... + 6620.

It is an arithmetic number, because the mean of its divisors is an integer number (5021520).

Almost surely, 2^20075189 is an apocalyptic number.

It is an amenable number.

20075189 is a deficient number, since it is larger than the sum of its proper divisors (10891).

20075189 is an equidigital number, since it uses as much as digits as its factorization.

20075189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10890.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 20075189 is about 4480.5344547275. The cubic root of 20075189 is about 271.7814935231.

The spelling of 20075189 in words is "twenty million, seventy-five thousand, one hundred eighty-nine".