852991131 has 8 divisors (see below), whose sum is σ = 1149046864. Its totient is φ = 562798080.

The previous prime is 852991127. The next prime is 852991141. The reversal of 852991131 is 131199258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 852991131 - 2² = 852991127 is a prime.

It is a super-2 number, since 2×852991131² = 1455187739129318322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 852991131.

It is not an unprimeable number, because it can be changed into a prime (852991141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1465330 + ... + 1465911.

It is an arithmetic number, because the mean of its divisors is an integer number (143630858).

Almost surely, 2^852991131 is an apocalyptic number.

852991131 is a deficient number, since it is larger than the sum of its proper divisors (296055733).

852991131 is a wasteful number, since it uses less digits than its factorization.

852991131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2931341.

The product of its digits is 19440, while the sum is 39.

The square root of 852991131 is about 29206.0118982377. The cubic root of 852991131 is about 948.3780749549.

The spelling of 852991131 in words is "eight hundred fifty-two million, nine hundred ninety-one thousand, one hundred thirty-one".