129057108 has 12 divisors (see below), whose sum is σ = 301133280. Its totient is φ = 43019032.

The previous prime is 129057107. The next prime is 129057109. The reversal of 129057108 is 801750921.

It is an interprime number because it is at equal distance from previous prime (129057107) and next prime (129057109).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129057107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5377368 + ... + 5377391.

It is an arithmetic number, because the mean of its divisors is an integer number (25094440).

Almost surely, 2^129057108 is an apocalyptic number.

It is an amenable number.

129057108 is an abundant number, since it is smaller than the sum of its proper divisors (172076172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

129057108 is a wasteful number, since it uses less digits than its factorization.

129057108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10754766 (or 10754764 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 129057108 is about 11360.3304529402. The cubic root of 129057108 is about 505.3519854359.

The spelling of 129057108 in words is "one hundred twenty-nine million, fifty-seven thousand, one hundred eight".