12489725 has 12 divisors (see below), whose sum is σ = 15579360. Its totient is φ = 9932400.

The previous prime is 12489721. The next prime is 12489727. The reversal of 12489725 is 52798421.

It is not a de Polignac number, because 12489725 - 2² = 12489721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12489721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3080 + ... + 5870.

It is an arithmetic number, because the mean of its divisors is an integer number (1298280).

Almost surely, 2^12489725 is an apocalyptic number.

It is an amenable number.

12489725 is a deficient number, since it is larger than the sum of its proper divisors (3089635).

12489725 is a wasteful number, since it uses less digits than its factorization.

12489725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2980 (or 2975 counting only the distinct ones).

The product of its digits is 40320, while the sum is 38.

The square root of 12489725 is about 3534.0805027616. The cubic root of 12489725 is about 232.0158344821.

The spelling of 12489725 in words is "twelve million, four hundred eighty-nine thousand, seven hundred twenty-five".