805241 has 2 divisors, whose sum is σ = 805242. Its totient is φ = 805240.

The previous prime is 805223. The next prime is 805249. The reversal of 805241 is 142508.

805241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409600 + 395641 = 640^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 805241 - 2⁶ = 805177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (805249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402620 + 402621.

It is an arithmetic number, because the mean of its divisors is an integer number (402621).

2⁸⁰⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

805241 is a deficient number, since it is larger than the sum of its proper divisors (1).

805241 is an equidigital number, since it uses as much as digits as its factorization.

805241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 805241 is about 897.3522162451. The cubic root of 805241 is about 93.0340569759.

Adding to 805241 its reverse (142508), we get a palindrome (947749).

The spelling of 805241 in words is "eight hundred five thousand, two hundred forty-one".