129075306 has 16 divisors (see below), whose sum is σ = 258302304. Its totient is φ = 42999824.

The previous prime is 129075283. The next prime is 129075311. The reversal of 129075306 is 603570921.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6856 + ... + 17468.

It is an arithmetic number, because the mean of its divisors is an integer number (16143894).

Almost surely, 2^129075306 is an apocalyptic number.

129075306 is an abundant number, since it is smaller than the sum of its proper divisors (129226998).

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

129075306 is a wasteful number, since it uses less digits than its factorization.

129075306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12645.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 129075306 is about 11361.1313697184. The cubic root of 129075306 is about 505.3757370999.

The spelling of 129075306 in words is "one hundred twenty-nine million, seventy-five thousand, three hundred six".