144444403 has 6 divisors (see below), whose sum is σ = 152447244. Its totient is φ = 136841724.

The previous prime is 144444383. The next prime is 144444431. The reversal of 144444403 is 304444441.

144444403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144444403 - 2⁵ = 144444371 is a prime.

It is a Duffinian number.

144444403 is a modest number, since divided by 44403 gives 1444 as remainder.

It is not an unprimeable number, because it can be changed into a prime (144444473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 199701 + ... + 200422.

It is an arithmetic number, because the mean of its divisors is an integer number (25407874).

Almost surely, 2^144444403 is an apocalyptic number.

144444403 is a deficient number, since it is larger than the sum of its proper divisors (8002841).

144444403 is an equidigital number, since it uses as much as digits as its factorization.

144444403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400161 (or 400142 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

The square root of 144444403 is about 12018.5025273534. The cubic root of 144444403 is about 524.6869220289.

Adding to 144444403 its reverse (304444441), we get a palindrome (448888844).

The spelling of 144444403 in words is "one hundred forty-four million, four hundred forty-four thousand, four hundred three".