142244413639 has 2 divisors, whose sum is σ = 142244413640. Its totient is φ = 142244413638.

The previous prime is 142244413627. The next prime is 142244413679. The reversal of 142244413639 is 936314442241.

It is a weak prime.

It is an emirp because it is prime and its reverse (936314442241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142244413639 - 2⁷ = 142244413511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142244413595 and 142244413604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142244413609) by changing a digit.

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, 71122206819 + 71122206820.

It is an arithmetic number, because the mean of its divisors is an integer number (71122206820).

Almost surely, 2^142244413639 is an apocalyptic number.

142244413639 is a deficient number, since it is larger than the sum of its proper divisors (1).

142244413639 is an equidigital number, since it uses as much as digits as its factorization.

142244413639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 43.

The spelling of 142244413639 in words is "one hundred forty-two billion, two hundred forty-four million, four hundred thirteen thousand, six hundred thirty-nine".