581241 has 8 divisors (see below), whose sum is σ = 778720. Its totient is φ = 385632.

The previous prime is 581239. The next prime is 581261. The reversal of 581241 is 142185.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 581241 - 2¹ = 581239 is a prime.

It is a super-2 number, since 2×581241² = 675682200162, which contains 22 as substring.

It is a Duffinian number.

581241 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (581201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 630 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (97340).

2⁵⁸¹²⁴¹ is an apocalyptic number.

It is an amenable number.

581241 is a deficient number, since it is larger than the sum of its proper divisors (197479).

581241 is a wasteful number, since it uses less digits than its factorization.

581241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935.

The product of its digits is 320, while the sum is 21.

The square root of 581241 is about 762.3916316435. The cubic root of 581241 is about 83.4549459936.

The spelling of 581241 in words is "five hundred eighty-one thousand, two hundred forty-one".