142143511501 has 2 divisors, whose sum is σ = 142143511502. Its totient is φ = 142143511500.

The previous prime is 142143511487. The next prime is 142143511637. The reversal of 142143511501 is 105115341241.

It is a happy number.

142143511501 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111579381225 + 30564130276 = 334035^2 + 174826^2 .

It is an emirp because it is prime and its reverse (105115341241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142143511501 - 2¹³ = 142143503309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142143511501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142143512501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71071755750 + 71071755751.

It is an arithmetic number, because the mean of its divisors is an integer number (71071755751).

Almost surely, 2^142143511501 is an apocalyptic number.

It is an amenable number.

142143511501 is a deficient number, since it is larger than the sum of its proper divisors (1).

142143511501 is an equidigital number, since it uses as much as digits as its factorization.

142143511501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 142143511501 its reverse (105115341241), we get a palindrome (247258852742).

The spelling of 142143511501 in words is "one hundred forty-two billion, one hundred forty-three million, five hundred eleven thousand, five hundred one".