100109912 has 32 divisors (see below), whose sum is σ = 221445120. Its totient is φ = 41519520.

The previous prime is 100109899. The next prime is 100109921. The reversal of 100109912 is 219901001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27098 + ... + 30569.

It is an arithmetic number, because the mean of its divisors is an integer number (6920160).

Almost surely, 2^100109912 is an apocalyptic number.

It is an amenable number.

100109912 is an abundant number, since it is smaller than the sum of its proper divisors (121335208).

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

100109912 is a wasteful number, since it uses less digits than its factorization.

100109912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57711 (or 57707 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 100109912 is about 10005.4940907483. The cubic root of 100109912 is about 464.3288765328.

The spelling of 100109912 in words is "one hundred million, one hundred nine thousand, nine hundred twelve".