144221214 has 8 divisors (see below), whose sum is σ = 288442440. Its totient is φ = 48073736.

The previous prime is 144221213. The next prime is 144221237. The reversal of 144221214 is 412122441.

It is a sphenic number, since it is the product of 3 distinct primes.

144221214 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12018429 + ... + 12018440.

It is an arithmetic number, because the mean of its divisors is an integer number (36055305).

Almost surely, 2^144221214 is an apocalyptic number.

144221214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

144221214 is a wasteful number, since it uses less digits than its factorization.

144221214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24036874.

The product of its digits is 512, while the sum is 21.

The square root of 144221214 is about 12009.2137128123. The cubic root of 144221214 is about 524.4165418373.

Adding to 144221214 its reverse (412122441), we get a palindrome (556343655).

The spelling of 144221214 in words is "one hundred forty-four million, two hundred twenty-one thousand, two hundred fourteen".