2821171132 has 48 divisors (see below), whose sum is σ = 5549487552. Its totient is φ = 1246302720.

The previous prime is 2821171109. The next prime is 2821171147. The reversal of 2821171132 is 2311711282.

It is a super-2 number, since 2×2821171132² = 15918013112060322848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2821171132.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 100513 + ... + 125479.

It is an arithmetic number, because the mean of its divisors is an integer number (115614324).

Almost surely, 2^2821171132 is an apocalyptic number.

It is an amenable number.

2821171132 is a deficient number, since it is larger than the sum of its proper divisors (2728316420).

2821171132 is a wasteful number, since it uses less digits than its factorization.

2821171132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25078 (or 25076 counting only the distinct ones).

The product of its digits is 1344, while the sum is 28.

The square root of 2821171132 is about 53114.6978905086. The cubic root of 2821171132 is about 1413.0031946399.

The spelling of 2821171132 in words is "two billion, eight hundred twenty-one million, one hundred seventy-one thousand, one hundred thirty-two".