129048925 has 12 divisors (see below), whose sum is σ = 160167700. Its totient is φ = 103144320.

The previous prime is 129048923. The next prime is 129048937. The reversal of 129048925 is 529840921.

It can be written as a sum of positive squares in 6 ways, for example, as 22174681 + 106874244 = 4709^2 + 10338^2 .

It is not a de Polignac number, because 129048925 - 2¹ = 129048923 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129048923) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40801 + ... + 43849.

Almost surely, 2^129048925 is an apocalyptic number.

It is an amenable number.

129048925 is a deficient number, since it is larger than the sum of its proper divisors (31118775).

129048925 is a wasteful number, since it uses less digits than its factorization.

129048925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4752 (or 4747 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 129048925 is about 11359.9702904541. The cubic root of 129048925 is about 505.3413044209.

The spelling of 129048925 in words is "one hundred twenty-nine million, forty-eight thousand, nine hundred twenty-five".