100185163 has 4 divisors (see below), whose sum is σ = 107891728. Its totient is φ = 92478600.

The previous prime is 100185161. The next prime is 100185191. The reversal of 100185163 is 361581001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 361581001 = 19 ⋅19030579.

It is a cyclic number.

It is not a de Polignac number, because 100185163 - 2¹ = 100185161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100185161) 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, 3853263 + ... + 3853288.

It is an arithmetic number, because the mean of its divisors is an integer number (26972932).

Almost surely, 2^100185163 is an apocalyptic number.

100185163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100185163 is a deficient number, since it is larger than the sum of its proper divisors (7706565).

100185163 is an equidigital number, since it uses as much as digits as its factorization.

100185163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706564.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 100185163 is about 10009.2538682961. The cubic root of 100185163 is about 464.4451902269.

The spelling of 100185163 in words is "one hundred million, one hundred eighty-five thousand, one hundred sixty-three".