129040548 has 48 divisors (see below), whose sum is σ = 370581120. Its totient is φ = 34032384.

The previous prime is 129040537. The next prime is 129040553. The reversal of 129040548 is 845040921.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57993 + ... + 60176.

It is an arithmetic number, because the mean of its divisors is an integer number (7720440).

Almost surely, 2^129040548 is an apocalyptic number.

It is an amenable number.

129040548 is an abundant number, since it is smaller than the sum of its proper divisors (241540572).

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

129040548 is a wasteful number, since it uses less digits than its factorization.

129040548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118196 (or 118194 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 129040548 is about 11359.6015775202. The cubic root of 129040548 is about 505.3303697161.

The spelling of 129040548 in words is "one hundred twenty-nine million, forty thousand, five hundred forty-eight".