12729925 has 36 divisors (see below), whose sum is σ = 17972064. Its totient is φ = 8923200.

The previous prime is 12729919. The next prime is 12729947. The reversal of 12729925 is 52992721.

It is not a de Polignac number, because 12729925 - 2³ = 12729917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 97110 + ... + 97240.

It is an arithmetic number, because the mean of its divisors is an integer number (499224).

Almost surely, 2^12729925 is an apocalyptic number.

It is an amenable number.

12729925 is a deficient number, since it is larger than the sum of its proper divisors (5242139).

12729925 is a wasteful number, since it uses less digits than its factorization.

12729925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 172 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 12729925 is about 3567.9020446195. The cubic root of 12729925 is about 233.4937615545.

The spelling of 12729925 in words is "twelve million, seven hundred twenty-nine thousand, nine hundred twenty-five".