100845912 has 32 divisors (see below), whose sum is σ = 252992880. Its totient is φ = 33498240.

The previous prime is 100845911. The next prime is 100845917. The reversal of 100845912 is 219548001.

It is a happy number.

It is a super-2 number, since 2×100845912² = 20339795934223488, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100845912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100845911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139 + ... + 14202.

Almost surely, 2^100845912 is an apocalyptic number.

100845912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100845912 is an abundant number, since it is smaller than the sum of its proper divisors (152146968).

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

100845912 is a wasteful number, since it uses less digits than its factorization.

100845912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14643 (or 14639 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 100845912 is about 10042.2065304394. The cubic root of 100845912 is about 465.4640020958.

The spelling of 100845912 in words is "one hundred million, eight hundred forty-five thousand, nine hundred twelve".