129872110 has 16 divisors (see below), whose sum is σ = 236973456. Its totient is φ = 51236928.

The previous prime is 129872107. The next prime is 129872131. The reversal of 129872110 is 11278921.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88224 + ... + 89683.

It is an arithmetic number, because the mean of its divisors is an integer number (14810841).

Almost surely, 2^129872110 is an apocalyptic number.

129872110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

129872110 is a deficient number, since it is larger than the sum of its proper divisors (107101346).

129872110 is a wasteful number, since it uses less digits than its factorization.

129872110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177987.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 129872110 is about 11396.1445234781. The cubic root of 129872110 is about 506.4135282314.

The spelling of 129872110 in words is "one hundred twenty-nine million, eight hundred seventy-two thousand, one hundred ten".