1804133 has 2 divisors, whose sum is σ = 1804134. Its totient is φ = 1804132.

The previous prime is 1804129. The next prime is 1804139. The reversal of 1804133 is 3314081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 484 = 1343^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 1804133 - 2² = 1804129 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1804139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902066 + 902067.

It is an arithmetic number, because the mean of its divisors is an integer number (902067).

2^1804133 is an apocalyptic number.

It is an amenable number.

1804133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1804133 is an equidigital number, since it uses as much as digits as its factorization.

1804133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1804133 is about 1343.1801815095. The cubic root of 1804133 is about 121.7370714880.

It can be divided in two parts, 1804 and 133, that multiplied together give a palindrome (239932).

The spelling of 1804133 in words is "one million, eight hundred four thousand, one hundred thirty-three".