100812812 has 12 divisors (see below), whose sum is σ = 180525576. Its totient is φ = 49234080.

The previous prime is 100812799. The next prime is 100812821. The reversal of 100812812 is 218218001.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 292889 + ... + 293232.

It is an arithmetic number, because the mean of its divisors is an integer number (15043798).

Almost surely, 2^100812812 is an apocalyptic number.

It is an amenable number.

100812812 is a deficient number, since it is larger than the sum of its proper divisors (79712764).

100812812 is a wasteful number, since it uses less digits than its factorization.

100812812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586168 (or 586166 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 100812812 is about 10040.5583510082. The cubic root of 100812812 is about 465.4130711124.

The spelling of 100812812 in words is "one hundred million, eight hundred twelve thousand, eight hundred twelve".