581045413 has 16 divisors (see below), whose sum is σ = 639621360. Its totient is φ = 524519424.

The previous prime is 581045383. The next prime is 581045453. The reversal of 581045413 is 314540185.

It can be written as a sum of positive squares in 8 ways, for example, as 42016324 + 539029089 = 6482^2 + 23217^2 .

It is not a de Polignac number, because 581045413 - 2²⁵ = 547490981 is a prime.

It is a super-2 number, since 2×581045413² = 675227543936681138, 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 (581045453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242023 + ... + 244411.

It is an arithmetic number, because the mean of its divisors is an integer number (39976335).

Almost surely, 2^581045413 is an apocalyptic number.

581045413 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

581045413 is a deficient number, since it is larger than the sum of its proper divisors (58575947).

581045413 is a wasteful number, since it uses less digits than its factorization.

581045413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 581045413 is about 24104.8835923346. The cubic root of 581045413 is about 834.4558410883.

Adding to 581045413 its reverse (314540185), we get a palindrome (895585598).

The spelling of 581045413 in words is "five hundred eighty-one million, forty-five thousand, four hundred thirteen".