144756169 has 2 divisors, whose sum is σ = 144756170. Its totient is φ = 144756168.

The previous prime is 144756133. The next prime is 144756187. The reversal of 144756169 is 961657441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134258569 + 10497600 = 11587^2 + 3240^2 .

It is a cyclic number.

It is not a de Polignac number, because 144756169 - 2⁹ = 144755657 is a prime.

It is a super-2 number, since 2×144756169² = 41908696927113122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144756109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72378084 + 72378085.

It is an arithmetic number, because the mean of its divisors is an integer number (72378085).

Almost surely, 2^144756169 is an apocalyptic number.

It is an amenable number.

144756169 is a deficient number, since it is larger than the sum of its proper divisors (1).

144756169 is an equidigital number, since it uses as much as digits as its factorization.

144756169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 43.

The square root of 144756169 is about 12031.4657876752. The cubic root of 144756169 is about 525.0641421253.

The spelling of 144756169 in words is "one hundred forty-four million, seven hundred fifty-six thousand, one hundred sixty-nine".