129616807 has 2 divisors, whose sum is σ = 129616808. Its totient is φ = 129616806.

The previous prime is 129616787. The next prime is 129616849. The reversal of 129616807 is 708616921.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 129616807 - 2¹¹ = 129614759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129616807.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129616897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64808403 + 64808404.

It is an arithmetic number, because the mean of its divisors is an integer number (64808404).

Almost surely, 2^129616807 is an apocalyptic number.

129616807 is a deficient number, since it is larger than the sum of its proper divisors (1).

129616807 is an equidigital number, since it uses as much as digits as its factorization.

129616807 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 129616807 is about 11384.9377249065. The cubic root of 129616807 is about 506.0814741194.

The spelling of 129616807 in words is "one hundred twenty-nine million, six hundred sixteen thousand, eight hundred seven".