1144623 has 4 divisors (see below), whose sum is σ = 1526168. Its totient is φ = 763080.

The previous prime is 1144621. The next prime is 1144643. The reversal of 1144623 is 3264411.

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

It is not a de Polignac number, because 1144623 - 2¹ = 1144621 is a prime.

It is a D-number.

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 1144623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144621) 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, 190768 + ... + 190773.

It is an arithmetic number, because the mean of its divisors is an integer number (381542).

2^1144623 is an apocalyptic number.

1144623 is a deficient number, since it is larger than the sum of its proper divisors (381545).

1144623 is an equidigital number, since it uses as much as digits as its factorization.

1144623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 381544.

The product of its digits is 576, while the sum is 21.

The square root of 1144623 is about 1069.8705529175. The cubic root of 1144623 is about 104.6054124306.

The spelling of 1144623 in words is "one million, one hundred forty-four thousand, six hundred twenty-three".