144522 has 48 divisors (see below), whose sum is σ = 379392. Its totient is φ = 38880.

The previous prime is 144511. The next prime is 144539. The reversal of 144522 is 225441.

144522 is a `hidden beast` number, since 144 + 522 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

Its product of digits (320) is a multiple of the sum of its prime divisors (80).

It is a plaindrome in base 16.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 144495 and 144504.

It is an unprimeable number.

144522 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3888 + ... + 3924.

It is an arithmetic number, because the mean of its divisors is an integer number (7904).

2¹⁴⁴⁵²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144522, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189696).

144522 is an abundant number, since it is smaller than the sum of its proper divisors (234870).

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

144522 is a wasteful number, since it uses less digits than its factorization.

144522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 80 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 144522 is about 380.1604924239. The cubic root of 144522 is about 52.4780860923.

Adding to 144522 its reverse (225441), we get a palindrome (369963).

It can be divided in two parts, 144 and 522, that added together give a palindrome (666).

The spelling of 144522 in words is "one hundred forty-four thousand, five hundred twenty-two".