142244413636 has 24 divisors (see below), whose sum is σ = 268390368344. Its totient is φ = 65574282240.

The previous prime is 142244413627. The next prime is 142244413639. The reversal of 142244413636 is 636314442241.

It can be written as a sum of positive squares in 4 ways, for example, as 760104900 + 141484308736 = 27570^2 + 376144^2 .

It is not an unprimeable number, because it can be changed into a prime (142244413639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1559085 + ... + 1647796.

Almost surely, 2^142244413636 is an apocalyptic number.

It is an amenable number.

142244413636 is a deficient number, since it is larger than the sum of its proper divisors (126145954708).

142244413636 is a wasteful number, since it uses less digits than its factorization.

142244413636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3207751 (or 3207749 counting only the distinct ones).

The product of its digits is 331776, while the sum is 40.

Adding to 142244413636 its reverse (636314442241), we get a palindrome (778558855877).

The spelling of 142244413636 in words is "one hundred forty-two billion, two hundred forty-four million, four hundred thirteen thousand, six hundred thirty-six".