12748725 has 96 divisors (see below), whose sum is σ = 27319680. Its totient is φ = 5760000.

The previous prime is 12748711. The next prime is 12748733. The reversal of 12748725 is 52784721.

12748725 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

12748725 is a nontrivial binomial coefficient, being equal to C(5050, 2).

It is not a de Polignac number, because 12748725 - 2⁸ = 12748469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12748725.

It is a congruent number.

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, 126175 + ... + 126275.

It is an arithmetic number, because the mean of its divisors is an integer number (284580).

Almost surely, 2^12748725 is an apocalyptic number.

12748725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12748725 is the 5049-th triangular number and also the 2525-th hexagonal number.

It is an amenable number.

12748725 is an abundant number, since it is smaller than the sum of its proper divisors (14570955).

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

12748725 is a wasteful number, since it uses less digits than its factorization.

12748725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148 (or 137 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 12748725 is about 3570.5356740971. The cubic root of 12748725 is about 233.6086489436.

It can be divided in two parts, 1274 and 8725, that added together give a palindrome (9999).

The spelling of 12748725 in words is "twelve million, seven hundred forty-eight thousand, seven hundred twenty-five".