144276269 has 2 divisors, whose sum is σ = 144276270. Its totient is φ = 144276268.

The previous prime is 144276241. The next prime is 144276287. The reversal of 144276269 is 962672441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 57078025 = 9338^2 + 7555^2 .

It is an emirp because it is prime and its reverse (962672441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144276269 - 2¹² = 144272173 is a prime.

It is a super-2 number, since 2×144276269² = 41631283593120722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144276169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72138134 + 72138135.

It is an arithmetic number, because the mean of its divisors is an integer number (72138135).

Almost surely, 2^144276269 is an apocalyptic number.

It is an amenable number.

144276269 is a deficient number, since it is larger than the sum of its proper divisors (1).

144276269 is an equidigital number, since it uses as much as digits as its factorization.

144276269 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 41.

The square root of 144276269 is about 12011.5056924600. The cubic root of 144276269 is about 524.4832635972.

The spelling of 144276269 in words is "one hundred forty-four million, two hundred seventy-six thousand, two hundred sixty-nine".