12787125 has 64 divisors (see below), whose sum is σ = 23831808. Its totient is φ = 6048000.

The previous prime is 12787109. The next prime is 12787127. The reversal of 12787125 is 52178721.

It is not a de Polignac number, because 12787125 - 2⁴ = 12787109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 209595 + ... + 209655.

It is an arithmetic number, because the mean of its divisors is an integer number (372372).

Almost surely, 2^12787125 is an apocalyptic number.

12787125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12787125 is a deficient number, since it is larger than the sum of its proper divisors (11044683).

12787125 is a wasteful number, since it uses less digits than its factorization.

12787125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 125 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 12787125 is about 3575.9089753516. The cubic root of 12787125 is about 233.8429620615.

The spelling of 12787125 in words is "twelve million, seven hundred eighty-seven thousand, one hundred twenty-five".