129417079 has 12 divisors (see below), whose sum is σ = 142637400. Its totient is φ = 116446400.

The previous prime is 129417077. The next prime is 129417091. The reversal of 129417079 is 970714921.

It is not a de Polignac number, because 129417079 - 2¹ = 129417077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129417077) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 460419 + ... + 460699.

It is an arithmetic number, because the mean of its divisors is an integer number (11886450).

Almost surely, 2^129417079 is an apocalyptic number.

129417079 is a deficient number, since it is larger than the sum of its proper divisors (13220321).

129417079 is an equidigital number, since it uses as much as digits as its factorization.

129417079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 129417079 is about 11376.1627537584. The cubic root of 129417079 is about 505.8213982717.

The spelling of 129417079 in words is "one hundred twenty-nine million, four hundred seventeen thousand, seventy-nine".