144287369 has 2 divisors, whose sum is σ = 144287370. Its totient is φ = 144287368.

The previous prime is 144287357. The next prime is 144287371. The reversal of 144287369 is 963782441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114169225 + 30118144 = 10685^2 + 5488^2 .

It is an emirp because it is prime and its reverse (963782441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144287369 - 2¹² = 144283273 is a prime.

It is a super-2 number, since 2×144287369² = 41637689705884322, which contains 22 as substring.

Together with 144287371, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (144287389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72143684 + 72143685.

It is an arithmetic number, because the mean of its divisors is an integer number (72143685).

Almost surely, 2^144287369 is an apocalyptic number.

It is an amenable number.

144287369 is a deficient number, since it is larger than the sum of its proper divisors (1).

144287369 is an equidigital number, since it uses as much as digits as its factorization.

144287369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 44.

The square root of 144287369 is about 12011.9677405494. The cubic root of 144287369 is about 524.4967137531.

The spelling of 144287369 in words is "one hundred forty-four million, two hundred eighty-seven thousand, three hundred sixty-nine".