129460872 has 32 divisors (see below), whose sum is σ = 334814400. Its totient is φ = 41665344.

The previous prime is 129460861. The next prime is 129460931. The reversal of 129460872 is 278064921.

It is a self number, because there is not a number n which added to its sum of digits gives 129460872.

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, 92308 + ... + 93699.

It is an arithmetic number, because the mean of its divisors is an integer number (10462950).

Almost surely, 2^129460872 is an apocalyptic number.

129460872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

129460872 is an abundant number, since it is smaller than the sum of its proper divisors (205353528).

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

129460872 is a wasteful number, since it uses less digits than its factorization.

129460872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186045 (or 186041 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 129460872 is about 11378.0873612396. The cubic root of 129460872 is about 505.8784462248.

The spelling of 129460872 in words is "one hundred twenty-nine million, four hundred sixty thousand, eight hundred seventy-two".