819041 has 4 divisors (see below), whose sum is σ = 820932. Its totient is φ = 817152.

The previous prime is 819037. The next prime is 819061. The reversal of 819041 is 140918.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 140918 = 2 ⋅70459.

It can be written as a sum of positive squares in 2 ways, for example, as 271441 + 547600 = 521^2 + 740^2 .

It is a cyclic number.

It is not a de Polignac number, because 819041 - 2² = 819037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 818998 and 819016.

It is not an unprimeable number, because it can be changed into a prime (819001) 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, 65 + ... + 1281.

It is an arithmetic number, because the mean of its divisors is an integer number (205233).

2⁸¹⁹⁰⁴¹ is an apocalyptic number.

It is an amenable number.

819041 is a deficient number, since it is larger than the sum of its proper divisors (1891).

819041 is a wasteful number, since it uses less digits than its factorization.

819041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 819041 is about 905.0088397358. The cubic root of 819041 is about 93.5625136006.

Adding to 819041 its reverse (140918), we get a palindrome (959959).

It can be divided in two parts, 8190 and 41, that multiplied together give a triangular number (335790 = T₈₁₉).

The spelling of 819041 in words is "eight hundred nineteen thousand, forty-one".