581463 has 18 divisors (see below), whose sum is σ = 893256. Its totient is φ = 363792.

The previous prime is 581459. The next prime is 581473. The reversal of 581463 is 364185.

It is not a de Polignac number, because 581463 - 2² = 581459 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

581463 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (581443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10945 + ... + 10997.

2⁵⁸¹⁴⁶³ is an apocalyptic number.

581463 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

581463 is a deficient number, since it is larger than the sum of its proper divisors (311793).

581463 is a wasteful number, since it uses less digits than its factorization.

581463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 79 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 581463 is about 762.5372122067. The cubic root of 581463 is about 83.4655696074.

It can be divided in two parts, 58 and 1463, that added together give a square (1521 = 39²).

The spelling of 581463 in words is "five hundred eighty-one thousand, four hundred sixty-three".