129999197075 has 48 divisors (see below), whose sum is σ = 177924612096. Its totient is φ = 93437164800.

The previous prime is 129999197059. The next prime is 129999197099. The reversal of 129999197075 is 570791999921.

It is not a de Polignac number, because 129999197075 - 2⁴ = 129999197059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 129999196996 and 129999197014.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9178199 + ... + 9192351.

It is an arithmetic number, because the mean of its divisors is an integer number (3706762752).

Almost surely, 2^129999197075 is an apocalyptic number.

129999197075 is a deficient number, since it is larger than the sum of its proper divisors (47925415021).

129999197075 is a wasteful number, since it uses less digits than its factorization.

129999197075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14564 (or 14559 counting only the distinct ones).

The product of its (nonzero) digits is 28934010, while the sum is 68.

The spelling of 129999197075 in words is "one hundred twenty-nine billion, nine hundred ninety-nine million, one hundred ninety-seven thousand, seventy-five".