144424369 has 2 divisors, whose sum is σ = 144424370. Its totient is φ = 144424368.

The previous prime is 144424349. The next prime is 144424391. The reversal of 144424369 is 963424441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118004769 + 26419600 = 10863^2 + 5140^2 .

It is a cyclic number.

It is not a de Polignac number, because 144424369 - 2¹⁵ = 144391601 is a prime.

It is a super-2 number, since 2×144424369² = 41716796722096322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144424309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72212184 + 72212185.

It is an arithmetic number, because the mean of its divisors is an integer number (72212185).

Almost surely, 2^144424369 is an apocalyptic number.

It is an amenable number.

144424369 is a deficient number, since it is larger than the sum of its proper divisors (1).

144424369 is an equidigital number, since it uses as much as digits as its factorization.

144424369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 37.

The square root of 144424369 is about 12017.6690335522. The cubic root of 144424369 is about 524.6626634131.

The spelling of 144424369 in words is "one hundred forty-four million, four hundred twenty-four thousand, three hundred sixty-nine".