144421003 has 8 divisors (see below), whose sum is σ = 146716272. Its totient is φ = 142143456.

The previous prime is 144420973. The next prime is 144421007. The reversal of 144421003 is 300124441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144421003 is a prime.

It is a super-2 number, since 2×144421003² = 41714852215052018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144421007) 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 7 ways as a sum of consecutive naturals, for example, 12501 + ... + 21097.

It is an arithmetic number, because the mean of its divisors is an integer number (18339534).

Almost surely, 2^144421003 is an apocalyptic number.

144421003 is a deficient number, since it is larger than the sum of its proper divisors (2295269).

144421003 is a wasteful number, since it uses less digits than its factorization.

144421003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8861.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144421003 is about 12017.5289889394. The cubic root of 144421003 is about 524.6585873968.

Adding to 144421003 its reverse (300124441), we get a palindrome (444545444).

The spelling of 144421003 in words is "one hundred forty-four million, four hundred twenty-one thousand, three".