100018 has 8 divisors (see below), whose sum is σ = 153648. Its totient is φ = 48804.

The previous prime is 100003. The next prime is 100019. The reversal of 100018 is 810001.

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

100018 is a modest number, since divided by 18 gives 10 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 99977 and 100013.

It is not an unprimeable number, because it can be changed into a prime (100019) 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, 496 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (19206).

2¹⁰⁰⁰¹⁸ is an apocalyptic number.

100018 is a deficient number, since it is larger than the sum of its proper divisors (53630).

100018 is a wasteful number, since it uses less digits than its factorization.

100018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 100018 is about 316.2562252352. The cubic root of 100018 is about 46.4186731223.

Adding to 100018 its reverse (810001), we get a palindrome (910019).

It can be divided in two parts, 10001 and 8, that multiplied together give a palindrome (80008).

The spelling of 100018 in words is "one hundred thousand, eighteen".