581012 has 6 divisors (see below), whose sum is σ = 1016778. Its totient is φ = 290504.

The previous prime is 580997. The next prime is 581029. The reversal of 581012 is 210185.

581012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 454276 + 126736 = 674^2 + 356^2 .

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 581012.

It is an unprimeable number.

581012 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72623 + ... + 72630.

It is an arithmetic number, because the mean of its divisors is an integer number (169463).

2⁵⁸¹⁰¹² is an apocalyptic number.

It is an amenable number.

581012 is a deficient number, since it is larger than the sum of its proper divisors (435766).

581012 is a wasteful number, since it uses less digits than its factorization.

581012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145257 (or 145255 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 581012 is about 762.2414315688. The cubic root of 581012 is about 83.4439845662.

Adding to 581012 its reverse (210185), we get a palindrome (791197).

The spelling of 581012 in words is "five hundred eighty-one thousand, twelve".