144144145 has 4 divisors (see below), whose sum is σ = 172972980. Its totient is φ = 115315312.

The previous prime is 144144137. The next prime is 144144149. The reversal of 144144145 is 541441441.

144144145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 72437121 + 71707024 = 8511^2 + 8468^2 .

It is a cyclic number.

It is not a de Polignac number, because 144144145 - 2³ = 144144137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144144149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14414410 + ... + 14414419.

It is an arithmetic number, because the mean of its divisors is an integer number (43243245).

Almost surely, 2^144144145 is an apocalyptic number.

It is an amenable number.

144144145 is a deficient number, since it is larger than the sum of its proper divisors (28828835).

144144145 is an equidigital number, since it uses as much as digits as its factorization.

144144145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28828834.

The product of its digits is 5120, while the sum is 28.

The square root of 144144145 is about 12006.0045393961. The cubic root of 144144145 is about 524.3231125405.

Adding to 144144145 its reverse (541441441), we get a palindrome (685585586).

The spelling of 144144145 in words is "one hundred forty-four million, one hundred forty-four thousand, one hundred forty-five".