129197675 has 6 divisors (see below), whose sum is σ = 160205148. Its totient is φ = 103358120.

The previous prime is 129197659. The next prime is 129197681. The reversal of 129197675 is 576791921.

It is not a de Polignac number, because 129197675 - 2⁴ = 129197659 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2583929 + ... + 2583978.

It is an arithmetic number, because the mean of its divisors is an integer number (26700858).

Almost surely, 2^129197675 is an apocalyptic number.

129197675 is a deficient number, since it is larger than the sum of its proper divisors (31007473).

129197675 is an equidigital number, since it uses as much as digits as its factorization.

129197675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5167917 (or 5167912 counting only the distinct ones).

The product of its digits is 238140, while the sum is 47.

The square root of 129197675 is about 11366.5155170791. The cubic root of 129197675 is about 505.5353927116.

The spelling of 129197675 in words is "one hundred twenty-nine million, one hundred ninety-seven thousand, six hundred seventy-five".