852111289 has 4 divisors (see below), whose sum is σ = 854525556. Its totient is φ = 849697024.

The previous prime is 852111287. The next prime is 852111307. The reversal of 852111289 is 982111258.

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 123543225 + 728568064 = 11115^2 + 26992^2 .

It is a cyclic number.

It is not a de Polignac number, because 852111289 - 2¹ = 852111287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852111287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206604 + ... + 1207309.

It is an arithmetic number, because the mean of its divisors is an integer number (213631389).

Almost surely, 2^852111289 is an apocalyptic number.

It is an amenable number.

852111289 is a deficient number, since it is larger than the sum of its proper divisors (2414267).

852111289 is a wasteful number, since it uses less digits than its factorization.

852111289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2414266.

The product of its digits is 11520, while the sum is 37.

The square root of 852111289 is about 29190.9453255629. The cubic root of 852111289 is about 948.0518855832.

The spelling of 852111289 in words is "eight hundred fifty-two million, one hundred eleven thousand, two hundred eighty-nine".