591043 has 4 divisors (see below), whose sum is σ = 598248. Its totient is φ = 583840.

The previous prime is 591023. The next prime is 591053. The reversal of 591043 is 340195.

591043 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 591043 - 2¹³ = 582851 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (591023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3478 + ... + 3643.

It is an arithmetic number, because the mean of its divisors is an integer number (149562).

2⁵⁹¹⁰⁴³ is an apocalyptic number.

591043 is a deficient number, since it is larger than the sum of its proper divisors (7205).

591043 is an equidigital number, since it uses as much as digits as its factorization.

591043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7204.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 591043 is about 768.7932101677. The cubic root of 591043 is about 83.9214590882.

The spelling of 591043 in words is "five hundred ninety-one thousand, forty-three".