104181905 has 24 divisors (see below), whose sum is σ = 130844160. Its totient is φ = 79608480.

The previous prime is 104181893. The next prime is 104181907. The reversal of 104181905 is 509181401.

It is not a de Polignac number, because 104181905 - 2⁶ = 104181841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (104181907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 545360 + ... + 545550.

It is an arithmetic number, because the mean of its divisors is an integer number (5451840).

Almost surely, 2^104181905 is an apocalyptic number.

It is an amenable number.

104181905 is a deficient number, since it is larger than the sum of its proper divisors (26662255).

104181905 is an equidigital number, since it uses as much as digits as its factorization.

104181905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341 (or 298 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 104181905 is about 10206.9537571207. The cubic root of 104181905 is about 470.5409570349.

The spelling of 104181905 in words is "one hundred four million, one hundred eighty-one thousand, nine hundred five".