144320212442 has 48 divisors (see below), whose sum is σ = 256062260520. Its totient is φ = 60811430400.

The previous prime is 144320212427. The next prime is 144320212451. The reversal of 144320212442 is 244212023441.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 70618279081 + 73701933361 = 265741^2 + 271481^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21092942 + ... + 21099782.

Almost surely, 2^144320212442 is an apocalyptic number.

144320212442 is a deficient number, since it is larger than the sum of its proper divisors (111742048078).

144320212442 is a wasteful number, since it uses less digits than its factorization.

144320212442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10447 (or 10440 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 29.

Adding to 144320212442 its reverse (244212023441), we get a palindrome (388532235883).

The spelling of 144320212442 in words is "one hundred forty-four billion, three hundred twenty million, two hundred twelve thousand, four hundred forty-two".