1845241 has 4 divisors (see below), whose sum is σ = 1908900. Its totient is φ = 1781584.

The previous prime is 1845229. The next prime is 1845271. The reversal of 1845241 is 1425481.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 837225 + 1008016 = 915^2 + 1004^2 .

It is a cyclic number.

It is not a de Polignac number, because 1845241 - 2⁵ = 1845209 is a prime.

It is a Duffinian number.

1845241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1845211) 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, 31786 + ... + 31843.

It is an arithmetic number, because the mean of its divisors is an integer number (477225).

2^1845241 is an apocalyptic number.

It is an amenable number.

1845241 is a deficient number, since it is larger than the sum of its proper divisors (63659).

1845241 is an equidigital number, since it uses as much as digits as its factorization.

1845241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63658.

The product of its digits is 1280, while the sum is 25.

The square root of 1845241 is about 1358.3964811497. The cubic root of 1845241 is about 122.6547482053.

The spelling of 1845241 in words is "one million, eight hundred forty-five thousand, two hundred forty-one".