144222775 has 6 divisors (see below), whose sum is σ = 178836272. Its totient is φ = 115378200.

The previous prime is 144222773. The next prime is 144222779. The reversal of 144222775 is 577222441.

It is not a de Polignac number, because 144222775 - 2¹ = 144222773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144222775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144222773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2884431 + ... + 2884480.

Almost surely, 2^144222775 is an apocalyptic number.

144222775 is a deficient number, since it is larger than the sum of its proper divisors (34613497).

144222775 is an equidigital number, since it uses as much as digits as its factorization.

144222775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5768921 (or 5768916 counting only the distinct ones).

The product of its digits is 31360, while the sum is 34.

The square root of 144222775 is about 12009.2787044019. The cubic root of 144222775 is about 524.4184338643.

The spelling of 144222775 in words is "one hundred forty-four million, two hundred twenty-two thousand, seven hundred seventy-five".