129006528 has 56 divisors (see below), whose sum is σ = 390095232. Its totient is φ = 36858624.

The previous prime is 129006481. The next prime is 129006539. The reversal of 129006528 is 825600921.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×129006528² = 33285368533229568, which contains 22 as substring.

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, 46650 + ... + 49337.

Almost surely, 2^129006528 is an apocalyptic number.

It is an amenable number.

129006528 is an abundant number, since it is smaller than the sum of its proper divisors (261088704).

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

129006528 is an equidigital number, since it uses as much as digits as its factorization.

129006528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96009 (or 95999 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 129006528 is about 11358.1040671408. The cubic root of 129006528 is about 505.2859577065.

It can be divided in two parts, 12900652 and 8, that added together give a triangular number (12900660 = T₅₀₇₉).

The spelling of 129006528 in words is "one hundred twenty-nine million, six thousand, five hundred twenty-eight".