129513195 has 64 divisors (see below), whose sum is σ = 271687680. Its totient is φ = 57283200.

The previous prime is 129513179. The next prime is 129513221. The reversal of 129513195 is 591315921.

129513195 is a `hidden beast` number, since 129 + 513 + 19 + 5 = 666.

It is not a de Polignac number, because 129513195 - 2⁴ = 129513179 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 63 ways as a sum of consecutive naturals, for example, 27085 + ... + 31505.

It is an arithmetic number, because the mean of its divisors is an integer number (4245120).

Almost surely, 2^129513195 is an apocalyptic number.

129513195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129513195 is an abundant number, since it is smaller than the sum of its proper divisors (142174485).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129513195 is a wasteful number, since it uses less digits than its factorization.

129513195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473 (or 4467 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 129513195 is about 11380.3864169895. The cubic root of 129513195 is about 505.9465891121.

The spelling of 129513195 in words is "one hundred twenty-nine million, five hundred thirteen thousand, one hundred ninety-five".