129700875 has 16 divisors (see below), whose sum is σ = 215822880. Its totient is φ = 69173600.

The previous prime is 129700861. The next prime is 129700913. The reversal of 129700875 is 578007921.

It is not a de Polignac number, because 129700875 - 2⁵ = 129700843 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172560 + ... + 173309.

It is an arithmetic number, because the mean of its divisors is an integer number (13488930).

Almost surely, 2^129700875 is an apocalyptic number.

129700875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129700875 is a deficient number, since it is larger than the sum of its proper divisors (86122005).

129700875 is an equidigital number, since it uses as much as digits as its factorization.

129700875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345887 (or 345877 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 129700875 is about 11388.6291975812. The cubic root of 129700875 is about 506.1908633865.

The spelling of 129700875 in words is "one hundred twenty-nine million, seven hundred thousand, eight hundred seventy-five".