100000198 has 8 divisors (see below), whose sum is σ = 153488808. Its totient is φ = 48837264.

The previous prime is 100000193. The next prime is 100000213. The reversal of 100000198 is 891000001.

It is a sphenic number, since it is the product of 3 distinct primes.

100000198 is a modest number, since divided by 198 gives 100 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581311 + ... + 581482.

It is an arithmetic number, because the mean of its divisors is an integer number (19186101).

Almost surely, 2^100000198 is an apocalyptic number.

100000198 is a deficient number, since it is larger than the sum of its proper divisors (53488610).

100000198 is a wasteful number, since it uses less digits than its factorization.

100000198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162838.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 100000198 is about 10000.0098999951. The cubic root of 100000198 is about 464.1591897059.

Adding to 100000198 its reverse (891000001), we get a palindrome (991000199).

The spelling of 100000198 in words is "one hundred million, one hundred ninety-eight", and thus it is an aban number.