144312222 has 16 divisors (see below), whose sum is σ = 288961920. Its totient is φ = 48047832.

The previous prime is 144312221. The next prime is 144312229. The reversal of 144312222 is 222213441.

144312222 is nontrivially palindromic in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144312221) 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 7 ways as a sum of consecutive naturals, for example, 8322 + ... + 18917.

It is an arithmetic number, because the mean of its divisors is an integer number (18060120).

Almost surely, 2^144312222 is an apocalyptic number.

144312222 is an abundant number, since it is smaller than the sum of its proper divisors (144649698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

144312222 is a wasteful number, since it uses less digits than its factorization.

144312222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28127.

The product of its digits is 768, while the sum is 21.

The square root of 144312222 is about 12013.0022059434. The cubic root of 144312222 is about 524.5268262723.

Adding to 144312222 its reverse (222213441), we get a palindrome (366525663).

It can be divided in two parts, 14431 and 2222, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 144312222 in words is "one hundred forty-four million, three hundred twelve thousand, two hundred twenty-two".