1813041 has 6 divisors (see below), whose sum is σ = 2618850. Its totient is φ = 1208688.

The previous prime is 1813039. The next prime is 1813073. The reversal of 1813041 is 1403181.

It can be written as a sum of positive squares in only one way, i.e., 1040400 + 772641 = 1020^2 + 879^2 .

It is not a de Polignac number, because 1813041 - 2¹ = 1813039 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1813001) 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 5 ways as a sum of consecutive naturals, for example, 100716 + ... + 100733.

It is an arithmetic number, because the mean of its divisors is an integer number (436475).

2^1813041 is an apocalyptic number.

It is an amenable number.

1813041 is a deficient number, since it is larger than the sum of its proper divisors (805809).

1813041 is a wasteful number, since it uses less digits than its factorization.

1813041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201455 (or 201452 counting only the distinct ones).

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

The square root of 1813041 is about 1346.4921091488. The cubic root of 1813041 is about 121.9371036543.

The spelling of 1813041 in words is "one million, eight hundred thirteen thousand, forty-one".