144221052 has 48 divisors (see below), whose sum is σ = 348751872. Its totient is φ = 46338240.

The previous prime is 144221041. The next prime is 144221059. The reversal of 144221052 is 250122441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221059) 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, 117313 + ... + 118535.

It is an arithmetic number, because the mean of its divisors is an integer number (7265664).

Almost surely, 2^144221052 is an apocalyptic number.

144221052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144221052 is an abundant number, since it is smaller than the sum of its proper divisors (204530820).

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

144221052 is a wasteful number, since it uses less digits than its factorization.

144221052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 144221052 is about 12009.2069679892. The cubic root of 144221052 is about 524.4163454827.

Adding to 144221052 its reverse (250122441), we get a palindrome (394343493).

The spelling of 144221052 in words is "one hundred forty-four million, two hundred twenty-one thousand, fifty-two".