1144403 has 8 divisors (see below), whose sum is σ = 1259328. Its totient is φ = 1033344.

The previous prime is 1144399. The next prime is 1144417. The reversal of 1144403 is 3044411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1144403 - 2² = 1144399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144453) 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 7 ways as a sum of consecutive naturals, for example, 326 + ... + 1547.

It is an arithmetic number, because the mean of its divisors is an integer number (157416).

2^1144403 is an apocalyptic number.

1144403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1144403 is a deficient number, since it is larger than the sum of its proper divisors (114925).

1144403 is a wasteful number, since it uses less digits than its factorization.

1144403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1933.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1144403 is about 1069.7677317998. The cubic root of 1144403 is about 104.5987101757.

Adding to 1144403 its reverse (3044411), we get a palindrome (4188814).

The spelling of 1144403 in words is "one million, one hundred forty-four thousand, four hundred three".