129803804 has 12 divisors (see below), whose sum is σ = 244630344. Its totient is φ = 59909424.

The previous prime is 129803771. The next prime is 129803809. The reversal of 129803804 is 408308921.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129803809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248062 + ... + 1248165.

It is an arithmetic number, because the mean of its divisors is an integer number (20385862).

Almost surely, 2^129803804 is an apocalyptic number.

It is an amenable number.

129803804 is a deficient number, since it is larger than the sum of its proper divisors (114826540).

129803804 is a wasteful number, since it uses less digits than its factorization.

129803804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2496244 (or 2496242 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 129803804 is about 11393.1472385816. The cubic root of 129803804 is about 506.3247302372.

The spelling of 129803804 in words is "one hundred twenty-nine million, eight hundred three thousand, eight hundred four".