144421158 has 32 divisors (see below), whose sum is σ = 330865920. Its totient is φ = 41168160.

The previous prime is 144421127. The next prime is 144421159. The reversal of 144421158 is 851124441.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144421159) 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, 15633 + ... + 23091.

It is an arithmetic number, because the mean of its divisors is an integer number (10339560).

Almost surely, 2^144421158 is an apocalyptic number.

144421158 is an abundant number, since it is smaller than the sum of its proper divisors (186444762).

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

144421158 is a wasteful number, since it uses less digits than its factorization.

144421158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7932.

The product of its digits is 5120, while the sum is 30.

The square root of 144421158 is about 12017.5354378508. The cubic root of 144421158 is about 524.6587750936.

Adding to 144421158 its reverse (851124441), we get a palindrome (995545599).

The spelling of 144421158 in words is "one hundred forty-four million, four hundred twenty-one thousand, one hundred fifty-eight".