144221002 has 16 divisors (see below), whose sum is σ = 224613000. Its totient is φ = 69368320.

The previous prime is 144220997. The next prime is 144221027. The reversal of 144221002 is 200122441.

It can be written as a sum of positive squares in 4 ways, for example, as 89889361 + 54331641 = 9481^2 + 7371^2 .

It is an unprimeable number.

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, 11874 + ... + 20722.

Almost surely, 2^144221002 is an apocalyptic number.

144221002 is a deficient number, since it is larger than the sum of its proper divisors (80391998).

144221002 is a wasteful number, since it uses less digits than its factorization.

144221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9161.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 144221002 is about 12009.2048862529. The cubic root of 144221002 is about 524.4162848794.

Adding to 144221002 its reverse (200122441), we get a palindrome (344343443).

The spelling of 144221002 in words is "one hundred forty-four million, two hundred twenty-one thousand, two".