129250140529 has 2 divisors, whose sum is σ = 129250140530. Its totient is φ = 129250140528.

The previous prime is 129250140401. The next prime is 129250140557. The reversal of 129250140529 is 925041052921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73354305600 + 55895834929 = 270840^2 + 236423^2 .

It is an emirp because it is prime and its reverse (925041052921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 129250140529 - 2⁷ = 129250140401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129250140491 and 129250140500.

It is not a weakly prime, because it can be changed into another prime (129250140559) 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, 64625070264 + 64625070265.

It is an arithmetic number, because the mean of its divisors is an integer number (64625070265).

Almost surely, 2^129250140529 is an apocalyptic number.

It is an amenable number.

129250140529 is a deficient number, since it is larger than the sum of its proper divisors (1).

129250140529 is an equidigital number, since it uses as much as digits as its factorization.

129250140529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 40.

The spelling of 129250140529 in words is "one hundred twenty-nine billion, two hundred fifty million, one hundred forty thousand, five hundred twenty-nine".