581089 has 2 divisors, whose sum is σ = 581090. Its totient is φ = 581088.

The previous prime is 581071. The next prime is 581099. The reversal of 581089 is 980185.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 547600 + 33489 = 740^2 + 183^2 .

It is a cyclic number.

It is not a de Polignac number, because 581089 - 2⁹ = 580577 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 581089.

It is not a weakly prime, because it can be changed into another prime (581029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290544 + 290545.

It is an arithmetic number, because the mean of its divisors is an integer number (290545).

2⁵⁸¹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

581089 is a deficient number, since it is larger than the sum of its proper divisors (1).

581089 is an equidigital number, since it uses as much as digits as its factorization.

581089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 581089 is about 762.2919388266. The cubic root of 581089 is about 83.4476706077.

The spelling of 581089 in words is "five hundred eighty-one thousand, eighty-nine".