655241 has 2 divisors, whose sum is σ = 655242. Its totient is φ = 655240.

The previous prime is 655229. The next prime is 655243. The reversal of 655241 is 142556.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 606841 + 48400 = 779^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 655241 - 2¹⁴ = 638857 is a prime.

Together with 655243, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (655243) 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 as a sum of consecutive naturals, namely, 327620 + 327621.

It is an arithmetic number, because the mean of its divisors is an integer number (327621).

2⁶⁵⁵²⁴¹ is an apocalyptic number.

It is an amenable number.

655241 is a deficient number, since it is larger than the sum of its proper divisors (1).

655241 is an equidigital number, since it uses as much as digits as its factorization.

655241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 655241 is about 809.4695794161. The cubic root of 655241 is about 86.8561059959.

Adding to 655241 its reverse (142556), we get a palindrome (797797).

The spelling of 655241 in words is "six hundred fifty-five thousand, two hundred forty-one".