129316803 has 16 divisors (see below), whose sum is σ = 214968576. Its totient is φ = 67177440.

The previous prime is 129316801. The next prime is 129316877. The reversal of 129316803 is 308613921.

It is not a de Polignac number, because 129316803 - 2¹ = 129316801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (129316801) 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, 279676 + ... + 280137.

It is an arithmetic number, because the mean of its divisors is an integer number (13435536).

Almost surely, 2^129316803 is an apocalyptic number.

129316803 is a deficient number, since it is larger than the sum of its proper divisors (85651773).

129316803 is a wasteful number, since it uses less digits than its factorization.

129316803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559834.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 129316803 is about 11371.7546139547. The cubic root of 129316803 is about 505.6907229575.

The spelling of 129316803 in words is "one hundred twenty-nine million, three hundred sixteen thousand, eight hundred three".