129140710 has 16 divisors (see below), whose sum is σ = 232843536. Its totient is φ = 51569568.

The previous prime is 129140689. The next prime is 129140719. The reversal of 129140710 is 17041921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129140719) 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, 4404 + ... + 16663.

It is an arithmetic number, because the mean of its divisors is an integer number (14552721).

Almost surely, 2^129140710 is an apocalyptic number.

129140710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129140710 is a deficient number, since it is larger than the sum of its proper divisors (103702826).

129140710 is a wasteful number, since it uses less digits than its factorization.

129140710 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21687.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 129140710 is about 11364.0094156948. The cubic root of 129140710 is about 505.4610826614.

The spelling of 129140710 in words is "one hundred twenty-nine million, one hundred forty thousand, seven hundred ten".