56143 has 4 divisors (see below), whose sum is σ = 58608. Its totient is φ = 53680.
The previous prime is 56131. The next prime is 56149. The reversal of 56143 is 34165.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34165 = 5 ⋅6833.
It is a cyclic number.
It is not a de Polignac number, because 56143 - 29 = 55631 is a prime.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 56143.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (56149) 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 3 ways as a sum of consecutive naturals, for example, 1198 + ... + 1243.
It is an arithmetic number, because the mean of its divisors is an integer number (14652).
256143 is an apocalyptic number.
56143 is a deficient number, since it is larger than the sum of its proper divisors (2465).
56143 is a wasteful number, since it uses less digits than its factorization.
56143 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2464.
The product of its digits is 360, while the sum is 19.
The square root of 56143 is about 236.9451413302. The cubic root of 56143 is about 38.2911613515.
It can be divided in two parts, 56 and 143, that multiplied together give a palindrome (8008).
The spelling of 56143 in words is "fifty-six thousand, one hundred forty-three".
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