144222305 has 16 divisors (see below), whose sum is σ = 191217024. Its totient is φ = 103868160.

The previous prime is 144222289. The next prime is 144222311. The reversal of 144222305 is 503222441.

It is a happy number.

It is not a de Polignac number, because 144222305 - 2⁴ = 144222289 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34931 + ... + 38840.

It is an arithmetic number, because the mean of its divisors is an integer number (11951064).

Almost surely, 2^144222305 is an apocalyptic number.

It is an amenable number.

144222305 is a deficient number, since it is larger than the sum of its proper divisors (46994719).

144222305 is a wasteful number, since it uses less digits than its factorization.

144222305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73816.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 144222305 is about 12009.2591361832. The cubic root of 144222305 is about 524.4178641971.

Adding to 144222305 its reverse (503222441), we get a palindrome (647444746).

The spelling of 144222305 in words is "one hundred forty-four million, two hundred twenty-two thousand, three hundred five".