144304042 has 4 divisors (see below), whose sum is σ = 216456066. Its totient is φ = 72152020.

The previous prime is 144304037. The next prime is 144304073. The reversal of 144304042 is 240403441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240403441 = 83 ⋅2896427.

It can be written as a sum of positive squares in only one way, i.e., 115799121 + 28504921 = 10761^2 + 5339^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36076009 + ... + 36076012.

Almost surely, 2^144304042 is an apocalyptic number.

144304042 is a deficient number, since it is larger than the sum of its proper divisors (72152024).

144304042 is an equidigital number, since it uses as much as digits as its factorization.

144304042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72152023.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 144304042 is about 12012.6617366843. The cubic root of 144304042 is about 524.5169155605.

Adding to 144304042 its reverse (240403441), we get a palindrome (384707483).

The spelling of 144304042 in words is "one hundred forty-four million, three hundred four thousand, forty-two".