144135222 has 32 divisors (see below), whose sum is σ = 359403264. Its totient is φ = 37437600.

The previous prime is 144135209. The next prime is 144135223. The reversal of 144135222 is 222531441.

It is a junction number, because it is equal to n+sod(n) for n = 144135192 and 144135201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144135223) 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 15 ways as a sum of consecutive naturals, for example, 155529 + ... + 156452.

It is an arithmetic number, because the mean of its divisors is an integer number (11231352).

Almost surely, 2^144135222 is an apocalyptic number.

144135222 is an abundant number, since it is smaller than the sum of its proper divisors (215268042).

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

144135222 is a wasteful number, since it uses less digits than its factorization.

144135222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312004.

The product of its digits is 1920, while the sum is 24.

The square root of 144135222 is about 12005.6329279218. The cubic root of 144135222 is about 524.3122932048.

Adding to 144135222 its reverse (222531441), we get a palindrome (366666663).

It can be divided in two parts, 1441 and 35222, that added together give a palindrome (36663).

The spelling of 144135222 in words is "one hundred forty-four million, one hundred thirty-five thousand, two hundred twenty-two".