144022042 has 4 divisors (see below), whose sum is σ = 216033066. Its totient is φ = 72011020.

The previous prime is 144022013. The next prime is 144022049. The reversal of 144022042 is 240220441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240220441 = 23 ⋅10444367.

It can be written as a sum of positive squares in only one way, i.e., 83010321 + 61011721 = 9111^2 + 7811^2 .

It is not an unprimeable number, because it can be changed into a prime (144022049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36005509 + ... + 36005512.

Almost surely, 2^144022042 is an apocalyptic number.

144022042 is a deficient number, since it is larger than the sum of its proper divisors (72011024).

144022042 is an equidigital number, since it uses as much as digits as its factorization.

144022042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72011023.

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 144022042 is about 12000.9183815240. The cubic root of 144022042 is about 524.1750211726.

Adding to 144022042 its reverse (240220441), we get a palindrome (384242483).

The spelling of 144022042 in words is "one hundred forty-four million, twenty-two thousand, forty-two".