581701 has 2 divisors, whose sum is σ = 581702. Its totient is φ = 581700.

The previous prime is 581699. The next prime is 581729. The reversal of 581701 is 107185.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 422500 + 159201 = 650^2 + 399^2 .

It is a cyclic number.

It is not a de Polignac number, because 581701 - 2¹ = 581699 is a prime.

Together with 581699, it forms a pair of twin primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (581731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290850 + 290851.

It is an arithmetic number, because the mean of its divisors is an integer number (290851).

2⁵⁸¹⁷⁰¹ is an apocalyptic number.

It is an amenable number.

581701 is a deficient number, since it is larger than the sum of its proper divisors (1).

581701 is an equidigital number, since it uses as much as digits as its factorization.

581701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 22.

The square root of 581701 is about 762.6932541986. The cubic root of 581701 is about 83.4769558841.

Adding to 581701 its reverse (107185), we get a palindrome (688886).

The spelling of 581701 in words is "five hundred eighty-one thousand, seven hundred one".