581041287 has 24 divisors (see below), whose sum is σ = 863903040. Its totient is φ = 376159680.

The previous prime is 581041271. The next prime is 581041289. The reversal of 581041287 is 782140185.

581041287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 581041287 - 2⁴ = 581041271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581041289) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36673 + ... + 50069.

It is an arithmetic number, because the mean of its divisors is an integer number (35995960).

Almost surely, 2^581041287 is an apocalyptic number.

581041287 is a deficient number, since it is larger than the sum of its proper divisors (282861753).

581041287 is a wasteful number, since it uses less digits than its factorization.

581041287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13543 (or 13540 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 581041287 is about 24104.7980078656. The cubic root of 581041287 is about 834.4538659283.

The spelling of 581041287 in words is "five hundred eighty-one million, forty-one thousand, two hundred eighty-seven".