1804113 has 10 divisors (see below), whose sum is σ = 2695154. Its totient is φ = 1202688.

The previous prime is 1804093. The next prime is 1804129. The reversal of 1804113 is 3114081.

It can be written as a sum of positive squares in only one way, i.e., 944784 + 859329 = 972^2 + 927^2 .

It is not a de Polignac number, because 1804113 - 2¹⁰ = 1803089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1804133) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 11056 + ... + 11217.

2^1804113 is an apocalyptic number.

It is an amenable number.

1804113 is a deficient number, since it is larger than the sum of its proper divisors (891041).

1804113 is an equidigital number, since it uses as much as digits as its factorization.

1804113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22285 (or 22276 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1804113 is about 1343.1727364714. The cubic root of 1804113 is about 121.7366216412.

Adding to 1804113 its reverse (3114081), we get a palindrome (4918194).

The spelling of 1804113 in words is "one million, eight hundred four thousand, one hundred thirteen".