142244543647 has 2 divisors, whose sum is σ = 142244543648. Its totient is φ = 142244543646.

The previous prime is 142244543531. The next prime is 142244543653. The reversal of 142244543647 is 746345442241.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142244543647 - 2²⁷ = 142110325919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 142244543597 and 142244543606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142244543657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71122271823 + 71122271824.

It is an arithmetic number, because the mean of its divisors is an integer number (71122271824).

Almost surely, 2^142244543647 is an apocalyptic number.

142244543647 is a deficient number, since it is larger than the sum of its proper divisors (1).

142244543647 is an equidigital number, since it uses as much as digits as its factorization.

142244543647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2580480, while the sum is 46.

Adding to 142244543647 its reverse (746345442241), we get a palindrome (888589985888).

The spelling of 142244543647 in words is "one hundred forty-two billion, two hundred forty-four million, five hundred forty-three thousand, six hundred forty-seven".