100500018 has 16 divisors (see below), whose sum is σ = 209739456. Its totient is φ = 32043440.

The previous prime is 100500011. The next prime is 100500019. The reversal of 100500018 is 810005001.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (100500011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 363993 + ... + 364268.

It is an arithmetic number, because the mean of its divisors is an integer number (13108716).

Almost surely, 2^100500018 is an apocalyptic number.

100500018 is an abundant number, since it is smaller than the sum of its proper divisors (109239438).

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

100500018 is a wasteful number, since it uses less digits than its factorization.

100500018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728289.

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

The square root of 100500018 is about 10024.9697256401. The cubic root of 100500018 is about 464.9312234966.

Adding to 100500018 its reverse (810005001), we get a palindrome (910505019).

The spelling of 100500018 in words is "one hundred million, five hundred thousand, eighteen".