144020003 has 16 divisors (see below), whose sum is σ = 155282400. Its totient is φ = 133297920.

The previous prime is 144019991. The next prime is 144020033. The reversal of 144020003 is 300020441.

It is not a de Polignac number, because 144020003 - 2⁴ = 144019987 is a prime.

It is a super-2 number, since 2×144020003² = 41483522528240018, which contains 22 as substring.

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 144020003.

It is not an unprimeable number, because it can be changed into a prime (144020033) 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 15 ways as a sum of consecutive naturals, for example, 69125 + ... + 71177.

It is an arithmetic number, because the mean of its divisors is an integer number (9705150).

Almost surely, 2^144020003 is an apocalyptic number.

144020003 is a deficient number, since it is larger than the sum of its proper divisors (11262397).

144020003 is a wasteful number, since it uses less digits than its factorization.

144020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 144020003 is about 12000.8334293915. The cubic root of 144020003 is about 524.1725474820.

Adding to 144020003 its reverse (300020441), we get a palindrome (444040444).

The spelling of 144020003 in words is "one hundred forty-four million, twenty thousand, three".