129345107 has 2 divisors, whose sum is σ = 129345108. Its totient is φ = 129345106.

The previous prime is 129345091. The next prime is 129345109. The reversal of 129345107 is 701543921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129345107 - 2⁴ = 129345091 is a prime.

Together with 129345109, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_7343159 and since 129345107 and 7343159 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (129345109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64672553 + 64672554.

It is an arithmetic number, because the mean of its divisors is an integer number (64672554).

Almost surely, 2^129345107 is an apocalyptic number.

129345107 is a deficient number, since it is larger than the sum of its proper divisors (1).

129345107 is an equidigital number, since it uses as much as digits as its factorization.

129345107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 129345107 is about 11372.9990327969. Note that the first 3 decimals coincide. The cubic root of 129345107 is about 505.7276143378.

The spelling of 129345107 in words is "one hundred twenty-nine million, three hundred forty-five thousand, one hundred seven".