1162857812 has 12 divisors (see below), whose sum is σ = 2038658580. Its totient is φ = 580383936.

The previous prime is 1162857803. The next prime is 1162857827. The reversal of 1162857812 is 2187582611.

It can be written as a sum of positive squares in 2 ways, for example, as 89378116 + 1073479696 = 9454^2 + 32764^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1162857812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 258737 + ... + 263192.

It is an arithmetic number, because the mean of its divisors is an integer number (169888215).

Almost surely, 2^1162857812 is an apocalyptic number.

It is an amenable number.

1162857812 is a deficient number, since it is larger than the sum of its proper divisors (875800768).

1162857812 is a wasteful number, since it uses less digits than its factorization.

1162857812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522490 (or 522488 counting only the distinct ones).

The product of its digits is 53760, while the sum is 41.

The square root of 1162857812 is about 34100.7010485122. The cubic root of 1162857812 is about 1051.5797270188.

The spelling of 1162857812 in words is "one billion, one hundred sixty-two million, eight hundred fifty-seven thousand, eight hundred twelve".