129252603051829 has 2 divisors, whose sum is σ = 129252603051830. Its totient is φ = 129252603051828.

The previous prime is 129252603051827. The next prime is 129252603051833. The reversal of 129252603051829 is 928150306252921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 94113766500625 + 35138836551204 = 9701225^2 + 5927802^2 .

It is a cyclic number.

It is not a de Polignac number, because 129252603051829 - 2¹ = 129252603051827 is a prime.

Together with 129252603051827, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 129252603051829.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129252603051827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64626301525914 + 64626301525915.

It is an arithmetic number, because the mean of its divisors is an integer number (64626301525915).

Almost surely, 2^{129252603051829} is an apocalyptic number.

It is an amenable number.

129252603051829 is a deficient number, since it is larger than the sum of its proper divisors (1).

129252603051829 is an equidigital number, since it uses as much as digits as its factorization.

129252603051829 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4665600, while the sum is 55.

The spelling of 129252603051829 in words is "one hundred twenty-nine trillion, two hundred fifty-two billion, six hundred three million, fifty-one thousand, eight hundred twenty-nine".