144265169 has 8 divisors (see below), whose sum is σ = 149457000. Its totient is φ = 139087872.

The previous prime is 144265159. The next prime is 144265171. The reversal of 144265169 is 961562441.

144265169 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 744769 + 143520400 = 863^2 + 11980^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144265169 is a prime.

It is a super-2 number, since 2×144265169² = 41624877973197122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (144265159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19067 + ... + 25535.

It is an arithmetic number, because the mean of its divisors is an integer number (18682125).

Almost surely, 2^144265169 is an apocalyptic number.

It is an amenable number.

144265169 is a deficient number, since it is larger than the sum of its proper divisors (5191831).

144265169 is an equidigital number, since it uses as much as digits as its factorization.

144265169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267.

The product of its digits is 51840, while the sum is 38.

The square root of 144265169 is about 12011.0436265963. The cubic root of 144265169 is about 524.4698127515.

The spelling of 144265169 in words is "one hundred forty-four million, two hundred sixty-five thousand, one hundred sixty-nine".