129763125 has 120 divisors (see below), whose sum is σ = 263165760. Its totient is φ = 61248000.

The previous prime is 129763111. The next prime is 129763129. The reversal of 129763125 is 521367921.

129763125 is a `hidden beast` number, since 12 + 9 + 7 + 631 + 2 + 5 = 666.

It is not a de Polignac number, because 129763125 - 2⁵ = 129763093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 129763125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (129763129) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2199346 + ... + 2199404.

It is an arithmetic number, because the mean of its divisors is an integer number (2193048).

Almost surely, 2^129763125 is an apocalyptic number.

129763125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

129763125 is an abundant number, since it is smaller than the sum of its proper divisors (133402635).

129763125 is a wasteful number, since it uses less digits than its factorization.

129763125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 107 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 129763125 is about 11391.3618588824. The cubic root of 129763125 is about 506.2718326204.

The spelling of 129763125 in words is "one hundred twenty-nine million, seven hundred sixty-three thousand, one hundred twenty-five".