144424913 has 2 divisors, whose sum is σ = 144424914. Its totient is φ = 144424912.

The previous prime is 144424859. The next prime is 144424933. The reversal of 144424913 is 319424441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100560784 + 43864129 = 10028^2 + 6623^2 .

It is a cyclic number.

It is not a de Polignac number, because 144424913 - 2¹² = 144420817 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144424913.

It is not a weakly prime, because it can be changed into another prime (144424933) 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 as a sum of consecutive naturals, namely, 72212456 + 72212457.

It is an arithmetic number, because the mean of its divisors is an integer number (72212457).

Almost surely, 2^144424913 is an apocalyptic number.

It is an amenable number.

144424913 is a deficient number, since it is larger than the sum of its proper divisors (1).

144424913 is an equidigital number, since it uses as much as digits as its factorization.

144424913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 144424913 is about 12017.6916668718. The cubic root of 144424913 is about 524.6633221573.

The spelling of 144424913 in words is "one hundred forty-four million, four hundred twenty-four thousand, nine hundred thirteen".