144531222 has 16 divisors (see below), whose sum is σ = 315340992. Its totient is φ = 43797320.

The previous prime is 144531209. The next prime is 144531239. The reversal of 144531222 is 222135441.

144531222 is nontrivially palindromic in base 5.

144531222 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144531192 and 144531201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1094868 + ... + 1094999.

It is an arithmetic number, because the mean of its divisors is an integer number (19708812).

Almost surely, 2^144531222 is an apocalyptic number.

144531222 is an abundant number, since it is smaller than the sum of its proper divisors (170809770).

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

144531222 is a wasteful number, since it uses less digits than its factorization.

144531222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2189883.

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

The square root of 144531222 is about 12022.1138740240. The cubic root of 144531222 is about 524.7920228368.

Adding to 144531222 its reverse (222135441), we get a palindrome (366666663).

The spelling of 144531222 in words is "one hundred forty-four million, five hundred thirty-one thousand, two hundred twenty-two".