100243185 has 16 divisors (see below), whose sum is σ = 183302016. Its totient is φ = 45825408.

The previous prime is 100243163. The next prime is 100243201. The reversal of 100243185 is 581342001.

It is not a de Polignac number, because 100243185 - 2⁵ = 100243153 is a prime.

It is a super-2 number, since 2×100243185² = 20097392277888450, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477244 + ... + 477453.

It is an arithmetic number, because the mean of its divisors is an integer number (11456376).

Almost surely, 2^100243185 is an apocalyptic number.

100243185 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100243185 is a deficient number, since it is larger than the sum of its proper divisors (83058831).

100243185 is an equidigital number, since it uses as much as digits as its factorization.

100243185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954712.

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 100243185 is about 10012.1518666069. The cubic root of 100243185 is about 464.5348337010.

Adding to 100243185 its reverse (581342001), we get a palindrome (681585186).

The spelling of 100243185 in words is "one hundred million, two hundred forty-three thousand, one hundred eighty-five".