104166109 has 4 divisors (see below), whose sum is σ = 105593116. Its totient is φ = 102739104.

The previous prime is 104166071. The next prime is 104166119. The reversal of 104166109 is 901661401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23794884 + 80371225 = 4878^2 + 8965^2 .

It is a cyclic number.

It is not a de Polignac number, because 104166109 - 2⁷ = 104165981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104166119) 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, 713394 + ... + 713539.

It is an arithmetic number, because the mean of its divisors is an integer number (26398279).

Almost surely, 2^104166109 is an apocalyptic number.

It is an amenable number.

104166109 is a deficient number, since it is larger than the sum of its proper divisors (1427007).

104166109 is an equidigital number, since it uses as much as digits as its factorization.

104166109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427006.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 104166109 is about 10206.1799415844. The cubic root of 104166109 is about 470.5171747839.

The spelling of 104166109 in words is "one hundred four million, one hundred sixty-six thousand, one hundred nine".