104403185 has 4 divisors (see below), whose sum is σ = 125283828. Its totient is φ = 83522544.

The previous prime is 104403181. The next prime is 104403193. The reversal of 104403185 is 581304401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 581304401 = 43 ⋅13518707.

It can be written as a sum of positive squares in 2 ways, for example, as 13601344 + 90801841 = 3688^2 + 9529^2 .

It is a cyclic number.

It is not a de Polignac number, because 104403185 - 2² = 104403181 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104403181) 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, 10440314 + ... + 10440323.

It is an arithmetic number, because the mean of its divisors is an integer number (31320957).

Almost surely, 2^104403185 is an apocalyptic number.

It is an amenable number.

104403185 is a deficient number, since it is larger than the sum of its proper divisors (20880643).

104403185 is an equidigital number, since it uses as much as digits as its factorization.

104403185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20880642.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 104403185 is about 10217.7876764004. The cubic root of 104403185 is about 470.8738608878.

Adding to 104403185 its reverse (581304401), we get a palindrome (685707586).

The spelling of 104403185 in words is "one hundred four million, four hundred three thousand, one hundred eighty-five".