144321242 has 16 divisors (see below), whose sum is σ = 236958792. Its totient is φ = 65517120.

The previous prime is 144321241. The next prime is 144321269. The reversal of 144321242 is 242123441.

It can be written as a sum of positive squares in 4 ways, for example, as 19351201 + 124970041 = 4399^2 + 11179^2 .

It is not an unprimeable number, because it can be changed into a prime (144321241) 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 7 ways as a sum of consecutive naturals, for example, 43913 + ... + 47084.

Almost surely, 2^144321242 is an apocalyptic number.

144321242 is a deficient number, since it is larger than the sum of its proper divisors (92637550).

144321242 is a wasteful number, since it uses less digits than its factorization.

144321242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91073.

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

The square root of 144321242 is about 12013.3776266294. The cubic root of 144321242 is about 524.5377542758.

Adding to 144321242 its reverse (242123441), we get a palindrome (386444683).

The spelling of 144321242 in words is "one hundred forty-four million, three hundred twenty-one thousand, two hundred forty-two".