144321469 has 2 divisors, whose sum is σ = 144321470. Its totient is φ = 144321468.

The previous prime is 144321451. The next prime is 144321503. The reversal of 144321469 is 964123441.

It is an a-pointer prime, because the next prime (144321503) can be obtained adding 144321469 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142324900 + 1996569 = 11930^2 + 1413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144321469 is a prime.

It is a super-2 number, since 2×144321469² = 41657372828635922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144321409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72160734 + 72160735.

It is an arithmetic number, because the mean of its divisors is an integer number (72160735).

Almost surely, 2^144321469 is an apocalyptic number.

It is an amenable number.

144321469 is a deficient number, since it is larger than the sum of its proper divisors (1).

144321469 is an equidigital number, since it uses as much as digits as its factorization.

144321469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The square root of 144321469 is about 12013.3870744266. The cubic root of 144321469 is about 524.5380292873.

The spelling of 144321469 in words is "one hundred forty-four million, three hundred twenty-one thousand, four hundred sixty-nine".