129339801 has 8 divisors (see below), whose sum is σ = 191614560. Its totient is φ = 86226516.

The previous prime is 129339779. The next prime is 129339803. The reversal of 129339801 is 108933921.

It is not a de Polignac number, because 129339801 - 2⁷ = 129339673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (129339803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2395155 + ... + 2395208.

It is an arithmetic number, because the mean of its divisors is an integer number (23951820).

Almost surely, 2^129339801 is an apocalyptic number.

It is an amenable number.

129339801 is a deficient number, since it is larger than the sum of its proper divisors (62274759).

129339801 is an equidigital number, since it uses as much as digits as its factorization.

129339801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4790372 (or 4790366 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 129339801 is about 11372.7657586007. The cubic root of 129339801 is about 505.7206989173.

The spelling of 129339801 in words is "one hundred twenty-nine million, three hundred thirty-nine thousand, eight hundred one".