129006677 has 2 divisors, whose sum is σ = 129006678. Its totient is φ = 129006676.

The previous prime is 129006617. The next prime is 129006707. The reversal of 129006677 is 776600921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88378801 + 40627876 = 9401^2 + 6374^2 .

It is a cyclic number.

It is not a de Polignac number, because 129006677 - 2⁶ = 129006613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129006677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129006607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64503338 + 64503339.

It is an arithmetic number, because the mean of its divisors is an integer number (64503339).

Almost surely, 2^129006677 is an apocalyptic number.

It is an amenable number.

129006677 is a deficient number, since it is larger than the sum of its proper divisors (1).

129006677 is an equidigital number, since it uses as much as digits as its factorization.

129006677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 129006677 is about 11358.1106263322. The cubic root of 129006677 is about 505.2861522382.

The spelling of 129006677 in words is "one hundred twenty-nine million, six thousand, six hundred seventy-seven".