100098 has 24 divisors (see below), whose sum is σ = 222768. Its totient is φ = 32472.

The previous prime is 100069. The next prime is 100103. The reversal of 100098 is 890001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 100098.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1165 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (9282).

2¹⁰⁰⁰⁹⁸ is an apocalyptic number.

100098 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

100098 is an abundant number, since it is smaller than the sum of its proper divisors (122670).

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

100098 is a wasteful number, since it uses less digits than its factorization.

100098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 155 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 100098 is about 316.3826796776. The cubic root of 100098 is about 46.4310459093.

Adding to 100098 its reverse (890001), we get a palindrome (990099).

The spelling of 100098 in words is "one hundred thousand, ninety-eight".