144315169 has 2 divisors, whose sum is σ = 144315170. Its totient is φ = 144315168.

The previous prime is 144315167. The next prime is 144315173. The reversal of 144315169 is 961513441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101909025 + 42406144 = 10095^2 + 6512^2 .

It is a cyclic number.

It is not a de Polignac number, because 144315169 - 2¹ = 144315167 is a prime.

It is a super-2 number, since 2×144315169² = 41653736006997122, which contains 22 as substring.

Together with 144315167, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (144315167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72157584 + 72157585.

It is an arithmetic number, because the mean of its divisors is an integer number (72157585).

Almost surely, 2^144315169 is an apocalyptic number.

It is an amenable number.

144315169 is a deficient number, since it is larger than the sum of its proper divisors (1).

144315169 is an equidigital number, since it uses as much as digits as its factorization.

144315169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 34.

The square root of 144315169 is about 12013.1248640810. The cubic root of 144315169 is about 524.5303967022.

It can be divided in two parts, 14431 and 5169, that added together give a square (19600 = 140²).

The spelling of 144315169 in words is "one hundred forty-four million, three hundred fifteen thousand, one hundred sixty-nine".