129068887 has 2 divisors, whose sum is σ = 129068888. Its totient is φ = 129068886.

The previous prime is 129068873. The next prime is 129068897. The reversal of 129068887 is 788860921.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-129068887 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129068887.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129068827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64534443 + 64534444.

It is an arithmetic number, because the mean of its divisors is an integer number (64534444).

Almost surely, 2^129068887 is an apocalyptic number.

129068887 is a deficient number, since it is larger than the sum of its proper divisors (1).

129068887 is an equidigital number, since it uses as much as digits as its factorization.

129068887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 129068887 is about 11360.8488679324. The cubic root of 129068887 is about 505.3673594049.

The spelling of 129068887 in words is "one hundred twenty-nine million, sixty-eight thousand, eight hundred eighty-seven".