1804141 has 4 divisors (see below), whose sum is σ = 1814400. Its totient is φ = 1793884.

The previous prime is 1804139. The next prime is 1804199. The reversal of 1804141 is 1414081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1804141 - 2¹ = 1804139 is a prime.

It is a Duffinian number.

1804141 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1804841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4861 + ... + 5218.

It is an arithmetic number, because the mean of its divisors is an integer number (453600).

2^1804141 is an apocalyptic number.

It is an amenable number.

1804141 is a deficient number, since it is larger than the sum of its proper divisors (10259).

1804141 is a wasteful number, since it uses less digits than its factorization.

1804141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10258.

The product of its (nonzero) digits is 128, while the sum is 19.

The square root of 1804141 is about 1343.1831595133. The cubic root of 1804141 is about 121.7372514258.

The spelling of 1804141 in words is "one million, eight hundred four thousand, one hundred forty-one".