100194988 has 24 divisors (see below), whose sum is σ = 180390672. Its totient is φ = 48667584.

The previous prime is 100194973. The next prime is 100195003. The reversal of 100194988 is 889491001.

It is an interprime number because it is at equal distance from previous prime (100194973) and next prime (100195003).

It is a self number, because there is not a number n which added to its sum of digits gives 100194988.

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, 32406 + ... + 35362.

It is an arithmetic number, because the mean of its divisors is an integer number (7516278).

Almost surely, 2^100194988 is an apocalyptic number.

It is an amenable number.

100194988 is a deficient number, since it is larger than the sum of its proper divisors (80195684).

100194988 is a wasteful number, since it uses less digits than its factorization.

100194988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3201 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 40.

The square root of 100194988 is about 10009.7446520878. The cubic root of 100194988 is about 464.4603721982.

The spelling of 100194988 in words is "one hundred million, one hundred ninety-four thousand, nine hundred eighty-eight".