144144522 has 40 divisors (see below), whose sum is σ = 326355876. Its totient is φ = 47547648.

The previous prime is 144144521. The next prime is 144144541. The reversal of 144144522 is 225441441.

It can be written as a sum of positive squares in 2 ways, for example, as 128391561 + 15752961 = 11331^2 + 3969^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (144144521) 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 19 ways as a sum of consecutive naturals, for example, 11128 + ... + 20300.

Almost surely, 2^144144522 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144144522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163177938).

144144522 is an abundant number, since it is smaller than the sum of its proper divisors (182211354).

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

144144522 is an equidigital number, since it uses as much as digits as its factorization.

144144522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9284 (or 9275 counting only the distinct ones).

The product of its digits is 5120, while the sum is 27.

The square root of 144144522 is about 12006.0202398630. The cubic root of 144144522 is about 524.3235696516.

Adding to 144144522 its reverse (225441441), we get a palindrome (369585963).

The spelling of 144144522 in words is "one hundred forty-four million, one hundred forty-four thousand, five hundred twenty-two".