812140108 has 48 divisors (see below), whose sum is σ = 1592786944. Its totient is φ = 359795520.

The previous prime is 812140081. The next prime is 812140127. The reversal of 812140108 is 801041218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202741 + ... + 206707.

Almost surely, 2^812140108 is an apocalyptic number.

It is an amenable number.

812140108 is a deficient number, since it is larger than the sum of its proper divisors (780646836).

812140108 is a wasteful number, since it uses less digits than its factorization.

812140108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4142 (or 4140 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 812140108 is about 28498.0720049620. The cubic root of 812140108 is about 932.9899944054.

The spelling of 812140108 in words is "eight hundred twelve million, one hundred forty thousand, one hundred eight".