104405005 has 4 divisors (see below), whose sum is σ = 125286012. Its totient is φ = 83524000.

The previous prime is 104404997. The next prime is 104405011. The reversal of 104405005 is 500504401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 500504401 = 13841 ⋅36161.

It can be written as a sum of positive squares in 2 ways, for example, as 67207204 + 37197801 = 8198^2 + 6099^2 .

It is not a de Polignac number, because 104405005 - 2³ = 104404997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10440496 + ... + 10440505.

It is an arithmetic number, because the mean of its divisors is an integer number (31321503).

Almost surely, 2^104405005 is an apocalyptic number.

It is an amenable number.

104405005 is a deficient number, since it is larger than the sum of its proper divisors (20881007).

104405005 is an equidigital number, since it uses as much as digits as its factorization.

104405005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20881006.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 104405005 is about 10217.8767363871. The cubic root of 104405005 is about 470.8765970287.

Adding to 104405005 its reverse (500504401), we get a palindrome (604909406).

The spelling of 104405005 in words is "one hundred four million, four hundred five thousand, five".