744123 has 4 divisors (see below), whose sum is σ = 992168. Its totient is φ = 496080.

The previous prime is 744113. The next prime is 744127. The reversal of 744123 is 321447.

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-744123 is a prime.

It is a D-number.

It is a Duffinian number.

744123 is a lucky number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 744123.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 744123.

It is not an unprimeable number, because it can be changed into a prime (744127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124018 + ... + 124023.

It is an arithmetic number, because the mean of its divisors is an integer number (248042).

2⁷⁴⁴¹²³ is an apocalyptic number.

744123 is a deficient number, since it is larger than the sum of its proper divisors (248045).

744123 is a wasteful number, since it uses less digits than its factorization.

744123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248044.

The product of its digits is 672, while the sum is 21.

The square root of 744123 is about 862.6256430225. The cubic root of 744123 is about 90.6180911102.

The spelling of 744123 in words is "seven hundred forty-four thousand, one hundred twenty-three", and thus it is an iban number.