852947161 has 4 divisors (see below), whose sum is σ = 930487824. Its totient is φ = 775406500.

The previous prime is 852947153. The next prime is 852947177. The reversal of 852947161 is 161749258.

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 not a de Polignac number, because 852947161 - 2³ = 852947153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (852947131) 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, 38770315 + ... + 38770336.

It is an arithmetic number, because the mean of its divisors is an integer number (232621956).

Almost surely, 2^852947161 is an apocalyptic number.

It is an amenable number.

852947161 is a deficient number, since it is larger than the sum of its proper divisors (77540663).

852947161 is a wasteful number, since it uses less digits than its factorization.

852947161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77540662.

The product of its digits is 120960, while the sum is 43.

The square root of 852947161 is about 29205.2591325604. The cubic root of 852947161 is about 948.3617790056.

The spelling of 852947161 in words is "eight hundred fifty-two million, nine hundred forty-seven thousand, one hundred sixty-one".