144301021 has 4 divisors (see below), whose sum is σ = 144325692. Its totient is φ = 144276352.

The previous prime is 144301007. The next prime is 144301037. The reversal of 144301021 is 120103441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120103441 = 5557 ⋅21613.

It can be written as a sum of positive squares in 2 ways, for example, as 53860921 + 90440100 = 7339^2 + 9510^2 .

It is a cyclic number.

It is not a de Polignac number, because 144301021 - 2⁹ = 144300509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144300986 and 144301004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144301081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1965 + ... + 17101.

It is an arithmetic number, because the mean of its divisors is an integer number (36081423).

Almost surely, 2^144301021 is an apocalyptic number.

It is an amenable number.

144301021 is a deficient number, since it is larger than the sum of its proper divisors (24671).

144301021 is an equidigital number, since it uses as much as digits as its factorization.

144301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24670.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 144301021 is about 12012.5359937026. The cubic root of 144301021 is about 524.5132552873.

Adding to 144301021 its reverse (120103441), we get a palindrome (264404462).

It can be divided in two parts, 14430 and 1021, that added together give a palindrome (15451).

The spelling of 144301021 in words is "one hundred forty-four million, three hundred one thousand, twenty-one".