144203122 has 16 divisors (see below), whose sum is σ = 260216640. Its totient is φ = 58548528.

The previous prime is 144203117. The next prime is 144203131. The reversal of 144203122 is 221302441.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 144203122.

It is an unprimeable number.

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, 270793 + ... + 271324.

It is an arithmetic number, because the mean of its divisors is an integer number (16263540).

Almost surely, 2^144203122 is an apocalyptic number.

144203122 is a deficient number, since it is larger than the sum of its proper divisors (116013518).

144203122 is a wasteful number, since it uses less digits than its factorization.

144203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542145.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 144203122 is about 12008.4604342105. The cubic root of 144203122 is about 524.3946122368.

Adding to 144203122 its reverse (221302441), we get a palindrome (365505563).

The spelling of 144203122 in words is "one hundred forty-four million, two hundred three thousand, one hundred twenty-two".