1812716312 has 16 divisors (see below), whose sum is σ = 3707829000. Its totient is φ = 823961920.

The previous prime is 1812716303. The next prime is 1812716327. The reversal of 1812716312 is 2136172181.

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, 10299437 + ... + 10299612.

Almost surely, 2^1812716312 is an apocalyptic number.

It is an amenable number.

1812716312 is an abundant number, since it is smaller than the sum of its proper divisors (1895112688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1812716312 is a wasteful number, since it uses less digits than its factorization.

1812716312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20599066 (or 20599062 counting only the distinct ones).

The product of its digits is 4032, while the sum is 32.

The square root of 1812716312 is about 42576.0062946256. The cubic root of 1812716312 is about 1219.2982419435.

Adding to 1812716312 its reverse (2136172181), we get a palindrome (3948888493).

The spelling of 1812716312 in words is "one billion, eight hundred twelve million, seven hundred sixteen thousand, three hundred twelve".