129345195 has 16 divisors (see below), whose sum is σ = 236517120. Its totient is φ = 59129184.

The previous prime is 129345157. The next prime is 129345253. The reversal of 129345195 is 591543921.

It is not a de Polignac number, because 129345195 - 2⁷ = 129345067 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 615825 + ... + 616034.

It is an arithmetic number, because the mean of its divisors is an integer number (14782320).

Almost surely, 2^129345195 is an apocalyptic number.

129345195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129345195 is a deficient number, since it is larger than the sum of its proper divisors (107171925).

129345195 is a wasteful number, since it uses less digits than its factorization.

129345195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231874.

The product of its digits is 48600, while the sum is 39.

The square root of 129345195 is about 11373.0029016087. The cubic root of 129345195 is about 505.7277290285.

The spelling of 129345195 in words is "one hundred twenty-nine million, three hundred forty-five thousand, one hundred ninety-five".