129528195 has 16 divisors (see below), whose sum is σ = 208140192. Its totient is φ = 68783360.

The previous prime is 129528173. The next prime is 129528227. The reversal of 129528195 is 591825921.

It is not a de Polignac number, because 129528195 - 2⁷ = 129528067 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, 15036 + ... + 22025.

It is an arithmetic number, because the mean of its divisors is an integer number (13008762).

Almost surely, 2^129528195 is an apocalyptic number.

129528195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

129528195 is a deficient number, since it is larger than the sum of its proper divisors (78611997).

129528195 is a wasteful number, since it uses less digits than its factorization.

129528195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37302.

The product of its digits is 64800, while the sum is 42.

The square root of 129528195 is about 11381.0454264975. The cubic root of 129528195 is about 505.9661209852.

The spelling of 129528195 in words is "one hundred twenty-nine million, five hundred twenty-eight thousand, one hundred ninety-five".