100276812 has 48 divisors (see below), whose sum is σ = 275274720. Its totient is φ = 31458816.

The previous prime is 100276811. The next prime is 100276853. The reversal of 100276812 is 218672001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (100276811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25473 + ... + 29144.

It is an arithmetic number, because the mean of its divisors is an integer number (5734890).

Almost surely, 2^100276812 is an apocalyptic number.

100276812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100276812 is an abundant number, since it is smaller than the sum of its proper divisors (174997908).

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

100276812 is a wasteful number, since it uses less digits than its factorization.

100276812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54647 (or 54639 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 100276812 is about 10013.8310351234. The cubic root of 100276812 is about 464.5867712848.

The spelling of 100276812 in words is "one hundred million, two hundred seventy-six thousand, eight hundred twelve".