144223142 has 16 divisors (see below), whose sum is σ = 248416512. Its totient is φ = 61515720.

The previous prime is 144223139. The next prime is 144223159. The reversal of 144223142 is 241322441.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21458 + ... + 27365.

It is an arithmetic number, because the mean of its divisors is an integer number (15526032).

Almost surely, 2^144223142 is an apocalyptic number.

144223142 is a deficient number, since it is larger than the sum of its proper divisors (104193370).

144223142 is a wasteful number, since it uses less digits than its factorization.

144223142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49043.

The product of its digits is 1536, while the sum is 23.

The square root of 144223142 is about 12009.2939842440. The cubic root of 144223142 is about 524.4188786886.

Adding to 144223142 its reverse (241322441), we get a palindrome (385545583).

The spelling of 144223142 in words is "one hundred forty-four million, two hundred twenty-three thousand, one hundred forty-two".