129282067 has 4 divisors (see below), whose sum is σ = 129305160. Its totient is φ = 129258976.

The previous prime is 129282047. The next prime is 129282071. The reversal of 129282067 is 760282921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129282067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (129282017) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2763 + ... + 16315.

It is an arithmetic number, because the mean of its divisors is an integer number (32326290).

Almost surely, 2^129282067 is an apocalyptic number.

129282067 is a deficient number, since it is larger than the sum of its proper divisors (23093).

129282067 is an equidigital number, since it uses as much as digits as its factorization.

129282067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23092.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 129282067 is about 11370.2272184860. The cubic root of 129282067 is about 505.6454407627.

The spelling of 129282067 in words is "one hundred twenty-nine million, two hundred eighty-two thousand, sixty-seven".