556143 has 16 divisors (see below), whose sum is σ = 861696. Its totient is φ = 312480.

The previous prime is 556123. The next prime is 556159. The reversal of 556143 is 341655.

It is not a de Polignac number, because 556143 - 2¹⁰ = 555119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556103) 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, 1305 + ... + 1677.

It is an arithmetic number, because the mean of its divisors is an integer number (53856).

2⁵⁵⁶¹⁴³ is an apocalyptic number.

556143 is a deficient number, since it is larger than the sum of its proper divisors (305553).

556143 is a wasteful number, since it uses less digits than its factorization.

556143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454.

The product of its digits is 1800, while the sum is 24.

The square root of 556143 is about 745.7499580959. The cubic root of 556143 is about 82.2360341892.

Adding to 556143 its reverse (341655), we get a palindrome (897798).

The spelling of 556143 in words is "five hundred fifty-six thousand, one hundred forty-three".