136842501329 has 2 divisors, whose sum is σ = 136842501330. Its totient is φ = 136842501328.

The previous prime is 136842501269. The next prime is 136842501403. The reversal of 136842501329 is 923105248631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82914050704 + 53928450625 = 287948^2 + 232225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136842501329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136842501329.

It is not a weakly prime, because it can be changed into another prime (136842500329) 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, 68421250664 + 68421250665.

It is an arithmetic number, because the mean of its divisors is an integer number (68421250665).

Almost surely, 2^136842501329 is an apocalyptic number.

It is an amenable number.

136842501329 is a deficient number, since it is larger than the sum of its proper divisors (1).

136842501329 is an equidigital number, since it uses as much as digits as its factorization.

136842501329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 136842501329 in words is "one hundred thirty-six billion, eight hundred forty-two million, five hundred one thousand, three hundred twenty-nine".