855241 has 2 divisors, whose sum is σ = 855242. Its totient is φ = 855240.

The previous prime is 855229. The next prime is 855269. The reversal of 855241 is 142558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 38025 = 904^2 + 195^2 .

It is a cyclic number.

It is not a de Polignac number, because 855241 - 2⁹ = 854729 is a prime.

It is not a weakly prime, because it can be changed into another prime (855221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427620 + 427621.

It is an arithmetic number, because the mean of its divisors is an integer number (427621).

2⁸⁵⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

855241 is a deficient number, since it is larger than the sum of its proper divisors (1).

855241 is an equidigital number, since it uses as much as digits as its factorization.

855241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1600, while the sum is 25.

The square root of 855241 is about 924.7924091384. The cubic root of 855241 is about 94.9211164190.

Adding to 855241 its reverse (142558), we get a palindrome (997799).

The spelling of 855241 in words is "eight hundred fifty-five thousand, two hundred forty-one".