129497875193 has 2 divisors, whose sum is σ = 129497875194. Its totient is φ = 129497875192.

The previous prime is 129497875189. The next prime is 129497875237. The reversal of 129497875193 is 391578794921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121468281529 + 8029593664 = 348523^2 + 89608^2 .

It is a cyclic number.

It is not a de Polignac number, because 129497875193 - 2² = 129497875189 is a prime.

It is not a weakly prime, because it can be changed into another prime (129497875123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64748937596 + 64748937597.

It is an arithmetic number, because the mean of its divisors is an integer number (64748937597).

Almost surely, 2^129497875193 is an apocalyptic number.

It is an amenable number.

129497875193 is a deficient number, since it is larger than the sum of its proper divisors (1).

129497875193 is an equidigital number, since it uses as much as digits as its factorization.

129497875193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34292160, while the sum is 65.

The spelling of 129497875193 in words is "one hundred twenty-nine billion, four hundred ninety-seven million, eight hundred seventy-five thousand, one hundred ninety-three".