512116189 has 4 divisors (see below), whose sum is σ = 551509756. Its totient is φ = 472722624.

The previous prime is 512116181. The next prime is 512116193. The reversal of 512116189 is 981611215.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283652964 + 228463225 = 16842^2 + 15115^2 .

It is a cyclic number.

It is not a de Polignac number, because 512116189 - 2³ = 512116181 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 (512116181) 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, 19696764 + ... + 19696789.

It is an arithmetic number, because the mean of its divisors is an integer number (137877439).

Almost surely, 2^512116189 is an apocalyptic number.

It is an amenable number.

512116189 is a deficient number, since it is larger than the sum of its proper divisors (39393567).

512116189 is a wasteful number, since it uses less digits than its factorization.

512116189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39393566.

The product of its digits is 4320, while the sum is 34.

The square root of 512116189 is about 22629.9842907590. The cubic root of 512116189 is about 800.0605105271.

The spelling of 512116189 in words is "five hundred twelve million, one hundred sixteen thousand, one hundred eighty-nine".