581141164 has 24 divisors (see below), whose sum is σ = 1030488480. Its totient is φ = 286729344.

The previous prime is 581141137. The next prime is 581141191. The reversal of 581141164 is 461141185.

It is an interprime number because it is at equal distance from previous prime (581141137) and next prime (581141191).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216897 + ... + 219559.

It is an arithmetic number, because the mean of its divisors is an integer number (42937020).

Almost surely, 2^581141164 is an apocalyptic number.

It is an amenable number.

581141164 is a deficient number, since it is larger than the sum of its proper divisors (449347316).

581141164 is a wasteful number, since it uses less digits than its factorization.

581141164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369 (or 3367 counting only the distinct ones).

The product of its digits is 3840, while the sum is 31.

The square root of 581141164 is about 24106.8696433195. The cubic root of 581141164 is about 834.5016754820.

The spelling of 581141164 in words is "five hundred eighty-one million, one hundred forty-one thousand, one hundred sixty-four".