100318 has 4 divisors (see below), whose sum is σ = 150480. Its totient is φ = 50158.

The previous prime is 100313. The next prime is 100333. The reversal of 100318 is 813001.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×100318² = 20127402248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100298 and 100307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100313) by changing a digit.

100318 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25078 + ... + 25081.

It is an arithmetic number, because the mean of its divisors is an integer number (37620).

2¹⁰⁰³¹⁸ is an apocalyptic number.

100318 is a deficient number, since it is larger than the sum of its proper divisors (50162).

100318 is an equidigital number, since it uses as much as digits as its factorization.

100318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50161.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100318 is about 316.7301690714. The cubic root of 100318 is about 46.4650371168.

Adding to 100318 its reverse (813001), we get a palindrome (913319).

The spelling of 100318 in words is "one hundred thousand, three hundred eighteen".