129704811 has 16 divisors (see below), whose sum is σ = 183926400. Its totient is φ = 81070848.

The previous prime is 129704801. The next prime is 129704821. The reversal of 129704811 is 118407921.

It is an interprime number because it is at equal distance from previous prime (129704801) and next prime (129704821).

It is not a de Polignac number, because 129704811 - 2¹¹ = 129702763 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129704801) by changing a digit.

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, 6201 + ... + 17258.

It is an arithmetic number, because the mean of its divisors is an integer number (11495400).

Almost surely, 2^129704811 is an apocalyptic number.

129704811 is a deficient number, since it is larger than the sum of its proper divisors (54221589).

129704811 is a wasteful number, since it uses less digits than its factorization.

129704811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23578.

The product of its (nonzero) digits is 4032, while the sum is 33.

The square root of 129704811 is about 11388.8020002106. The cubic root of 129704811 is about 506.1959837505.

The spelling of 129704811 in words is "one hundred twenty-nine million, seven hundred four thousand, eight hundred eleven".