581164 has 12 divisors (see below), whose sum is σ = 1061424. Its totient is φ = 277904.

The previous prime is 581149. The next prime is 581171. The reversal of 581164 is 461185.

581164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3067 + ... + 3250.

It is an arithmetic number, because the mean of its divisors is an integer number (88452).

2⁵⁸¹¹⁶⁴ is an apocalyptic number.

It is an amenable number.

581164 is a deficient number, since it is larger than the sum of its proper divisors (480260).

581164 is a wasteful number, since it uses less digits than its factorization.

581164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6344 (or 6342 counting only the distinct ones).

The product of its digits is 960, while the sum is 25.

The square root of 581164 is about 762.3411309906. The cubic root of 581164 is about 83.4512605948.

The spelling of 581164 in words is "five hundred eighty-one thousand, one hundred sixty-four".