5831581 has 16 divisors (see below), whose sum is σ = 7200000. Its totient is φ = 4612608.

The previous prime is 5831557. The next prime is 5831597. The reversal of 5831581 is 1851385.

It is not a de Polignac number, because 5831581 - 2¹¹ = 5829533 is a prime.

It is a super-2 number, since 2×5831581² = 68014673919122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5831521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4045 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (450000).

Almost surely, 2^5831581 is an apocalyptic number.

It is an amenable number.

5831581 is a deficient number, since it is larger than the sum of its proper divisors (1368419).

5831581 is a wasteful number, since it uses less digits than its factorization.

5831581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1308.

The product of its digits is 4800, while the sum is 31.

The square root of 5831581 is about 2414.8666629858. The cubic root of 5831581 is about 179.9956891972.

The spelling of 5831581 in words is "five million, eight hundred thirty-one thousand, five hundred eighty-one".