100518 has 16 divisors (see below), whose sum is σ = 219456. Its totient is φ = 30440.

The previous prime is 100517. The next prime is 100519. The reversal of 100518 is 815001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100517) and next prime (100519).

It is a Curzon number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 100497 and 100506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (13716).

2¹⁰⁰⁵¹⁸ is an apocalyptic number.

100518 is an abundant number, since it is smaller than the sum of its proper divisors (118938).

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

100518 is a wasteful number, since it uses less digits than its factorization.

100518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 100518 is about 317.0457380253. The cubic root of 100518 is about 46.4958951169.

Adding to 100518 its reverse (815001), we get a palindrome (915519).

It can be divided in two parts, 10051 and 8, that multiplied together give a palindrome (80408).

The spelling of 100518 in words is "one hundred thousand, five hundred eighteen".