144403 has 8 divisors (see below), whose sum is σ = 168800. Its totient is φ = 123480.

The previous prime is 144383. The next prime is 144407. The reversal of 144403 is 304441.

It is not a de Polignac number, because 144403 - 2¹⁷ = 13331 is a prime.

It is a super-3 number, since 3×144403³ = 9033372150416481, which contains 333 as substring.

It is a Duffinian number.

144403 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (144407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133 + ... + 553.

It is an arithmetic number, because the mean of its divisors is an integer number (21100).

2¹⁴⁴⁴⁰³ is an apocalyptic number.

144403 is a deficient number, since it is larger than the sum of its proper divisors (24397).

144403 is an frugal number, since it uses more digits than its factorization.

144403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 428 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 144403 is about 380.0039473479. The cubic root of 144403 is about 52.4636785810.

Adding to 144403 its reverse (304441), we get a palindrome (448844).

The spelling of 144403 in words is "one hundred forty-four thousand, four hundred three", and thus it is an iban number.