144437641 has 2 divisors, whose sum is σ = 144437642. Its totient is φ = 144437640.

The previous prime is 144437611. The next prime is 144437647. The reversal of 144437641 is 146734441.

144437641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 6610041 = 11740^2 + 2571^2 .

It is a cyclic number.

It is not a de Polignac number, because 144437641 - 2⁵ = 144437609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144437597 and 144437606.

It is not a weakly prime, because it can be changed into another prime (144437647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72218820 + 72218821.

It is an arithmetic number, because the mean of its divisors is an integer number (72218821).

Almost surely, 2^144437641 is an apocalyptic number.

It is an amenable number.

144437641 is a deficient number, since it is larger than the sum of its proper divisors (1).

144437641 is an equidigital number, since it uses as much as digits as its factorization.

144437641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 34.

The square root of 144437641 is about 12018.2212078161. The cubic root of 144437641 is about 524.6787343611.

The spelling of 144437641 in words is "one hundred forty-four million, four hundred thirty-seven thousand, six hundred forty-one".