144569 has 2 divisors, whose sum is σ = 144570. Its totient is φ = 144568.

The previous prime is 144563. The next prime is 144577. The reversal of 144569 is 965441.

144569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144400 + 169 = 380^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 144569 - 2¹² = 140473 is a prime.

It is a super-2 number, since 2×144569² = 41800391522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (144563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72284 + 72285.

It is an arithmetic number, because the mean of its divisors is an integer number (72285).

2¹⁴⁴⁵⁶⁹ is an apocalyptic number.

It is an amenable number.

144569 is a deficient number, since it is larger than the sum of its proper divisors (1).

144569 is an equidigital number, since it uses as much as digits as its factorization.

144569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 144569 is about 380.2223033963. Note that the first 3 decimals coincide. The cubic root of 144569 is about 52.4837742753.

The spelling of 144569 in words is "one hundred forty-four thousand, five hundred sixty-nine".