142631556563 has 2 divisors, whose sum is σ = 142631556564. Its totient is φ = 142631556562.

The previous prime is 142631556541. The next prime is 142631556577. The reversal of 142631556563 is 365655136241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142631556563 - 2⁸ = 142631556307 is a prime.

It is not a weakly prime, because it can be changed into another prime (142631556523) 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, 71315778281 + 71315778282.

It is an arithmetic number, because the mean of its divisors is an integer number (71315778282).

Almost surely, 2^142631556563 is an apocalyptic number.

142631556563 is a deficient number, since it is larger than the sum of its proper divisors (1).

142631556563 is an equidigital number, since it uses as much as digits as its factorization.

142631556563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 47.

The spelling of 142631556563 in words is "one hundred forty-two billion, six hundred thirty-one million, five hundred fifty-six thousand, five hundred sixty-three".