5440123 has 4 divisors (see below), whose sum is σ = 5858608. Its totient is φ = 5021640.

The previous prime is 5440117. The next prime is 5440181. The reversal of 5440123 is 3210445.

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

It is a de Polignac number, because none of the positive numbers 2^k-5440123 is a prime.

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 5440123.

It is not an unprimeable number, because it can be changed into a prime (5440103) 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, 209223 + ... + 209248.

It is an arithmetic number, because the mean of its divisors is an integer number (1464652).

Almost surely, 2^5440123 is an apocalyptic number.

5440123 is a deficient number, since it is larger than the sum of its proper divisors (418485).

5440123 is a wasteful number, since it uses less digits than its factorization.

5440123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418484.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 5440123 is about 2332.4071256965. The cubic root of 5440123 is about 175.8745123912.

Adding to 5440123 its reverse (3210445), we get a palindrome (8650568).

The spelling of 5440123 in words is "five million, four hundred forty thousand, one hundred twenty-three".