144002021 has 2 divisors, whose sum is σ = 144002022. Its totient is φ = 144002020.

The previous prime is 144002017. The next prime is 144002101. The reversal of 144002021 is 120200441.

144002021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90916225 + 53085796 = 9535^2 + 7286^2 .

It is a cyclic number.

It is not a de Polignac number, because 144002021 - 2² = 144002017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144001987 and 144002005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144002321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72001010 + 72001011.

It is an arithmetic number, because the mean of its divisors is an integer number (72001011).

Almost surely, 2^144002021 is an apocalyptic number.

It is an amenable number.

144002021 is a deficient number, since it is larger than the sum of its proper divisors (1).

144002021 is an equidigital number, since it uses as much as digits as its factorization.

144002021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 144002021 is about 12000.0842080379. The cubic root of 144002021 is about 524.1507309221.

Adding to 144002021 its reverse (120200441), we get a palindrome (264202462).

The spelling of 144002021 in words is "one hundred forty-four million, two thousand, twenty-one".