144242242442 has 4 divisors (see below), whose sum is σ = 216363363666. Its totient is φ = 72121121220.

The previous prime is 144242242439. The next prime is 144242242457. The reversal of 144242242442 is 244242242441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 129095771401 + 15146471041 = 359299^2 + 123071^2 .

It is a super-2 number, since 2×144242242442² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36060560609 + ... + 36060560612.

Almost surely, 2^144242242442 is an apocalyptic number.

144242242442 is a deficient number, since it is larger than the sum of its proper divisors (72121121224).

144242242442 is an equidigital number, since it uses as much as digits as its factorization.

144242242442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72121121223.

The product of its digits is 131072, while the sum is 35.

Adding to 144242242442 its reverse (244242242441), we get a palindrome (388484484883).

Subtracting 144242242442 from its reverse (244242242441), we obtain a palindrome (99999999999).

The spelling of 144242242442 in words is "one hundred forty-four billion, two hundred forty-two million, two hundred forty-two thousand, four hundred forty-two".