144221024 has 12 divisors (see below), whose sum is σ = 283935204. Its totient is φ = 72110496.

The previous prime is 144220997. The next prime is 144221027. The reversal of 144221024 is 420122441.

It is a junction number, because it is equal to n+sod(n) for n = 144220987 and 144221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2253422 + ... + 2253485.

It is an arithmetic number, because the mean of its divisors is an integer number (23661267).

Almost surely, 2^144221024 is an apocalyptic number.

It is an amenable number.

144221024 is a deficient number, since it is larger than the sum of its proper divisors (139714180).

144221024 is an equidigital number, since it uses as much as digits as its factorization.

144221024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4506917 (or 4506909 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 144221024 is about 12009.2058022169. The cubic root of 144221024 is about 524.4163115448.

Adding to 144221024 its reverse (420122441), we get a palindrome (564343465).

The spelling of 144221024 in words is "one hundred forty-four million, two hundred twenty-one thousand, twenty-four".