5543123 has 4 divisors (see below), whose sum is σ = 5547960. Its totient is φ = 5538288.

The previous prime is 5543119. The next prime is 5543129. The reversal of 5543123 is 3213455.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5543123 - 2² = 5543119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5543129) 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, 383 + ... + 3351.

It is an arithmetic number, because the mean of its divisors is an integer number (1386990).

Almost surely, 2^5543123 is an apocalyptic number.

5543123 is a deficient number, since it is larger than the sum of its proper divisors (4837).

5543123 is a wasteful number, since it uses less digits than its factorization.

5543123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4836.

The product of its digits is 1800, while the sum is 23.

The square root of 5543123 is about 2354.3837834983. The cubic root of 5543123 is about 176.9775472387.

Adding to 5543123 its reverse (3213455), we get a palindrome (8756578).

It can be divided in two parts, 5 and 543123, that multiplied together give a triangular number (2715615 = T₂₃₃₀).

The spelling of 5543123 in words is "five million, five hundred forty-three thousand, one hundred twenty-three".