129803625 has 96 divisors (see below), whose sum is σ = 273341952. Its totient is φ = 58032000.

The previous prime is 129803579. The next prime is 129803633. The reversal of 129803625 is 526308921.

129803625 is a `hidden beast` number, since 1 + 29 + 8 + 0 + 3 + 625 = 666.

It is not a de Polignac number, because 129803625 - 2⁶ = 129803561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129803625.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 417220 + ... + 417530.

It is an arithmetic number, because the mean of its divisors is an integer number (2847312).

Almost surely, 2^129803625 is an apocalyptic number.

129803625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129803625 is an abundant number, since it is smaller than the sum of its proper divisors (143538327).

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

129803625 is a wasteful number, since it uses less digits than its factorization.

129803625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392 (or 379 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 129803625 is about 11393.1393829796. The cubic root of 129803625 is about 506.3244974958.

The spelling of 129803625 in words is "one hundred twenty-nine million, eight hundred three thousand, six hundred twenty-five".