129107 has 8 divisors (see below), whose sum is σ = 143472. Its totient is φ = 116160.
The previous prime is 129097. The next prime is 129113. The reversal of 129107 is 701921.
It is a de Polignac number, because none of the positive numbers 2k-129107 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (129127) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1283 + ... + 1379.
It is an arithmetic number, because the mean of its divisors is an integer number (17934).
2129107 is an apocalyptic number.
129107 is a deficient number, since it is larger than the sum of its proper divisors (14365).
129107 is an frugal number, since it uses more digits than its factorization.
129107 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 130 (or 108 counting only the distinct ones).
The product of its (nonzero) digits is 126, while the sum is 20.
The square root of 129107 is about 359.3146253633. The cubic root of 129107 is about 50.5417098143.
It can be divided in two parts, 12 and 9107, that added together give a palindrome (9119).
The spelling of 129107 in words is "one hundred twenty-nine thousand, one hundred seven".
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