12787325 has 12 divisors (see below), whose sum is σ = 15901140. Its totient is φ = 10200960.

The previous prime is 12787321. The next prime is 12787331. The reversal of 12787325 is 52378721.

It can be written as a sum of positive squares in 6 ways, for example, as 2042041 + 10745284 = 1429^2 + 3278^2 .

It is not a de Polignac number, because 12787325 - 2² = 12787321 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12787321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15011 + ... + 15839.

It is an arithmetic number, because the mean of its divisors is an integer number (1325095).

Almost surely, 2^12787325 is an apocalyptic number.

It is an amenable number.

12787325 is a deficient number, since it is larger than the sum of its proper divisors (3113815).

12787325 is an equidigital number, since it uses as much as digits as its factorization.

12787325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456 (or 1451 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 12787325 is about 3575.9369401599. The cubic root of 12787325 is about 233.8441812135.

The spelling of 12787325 in words is "twelve million, seven hundred eighty-seven thousand, three hundred twenty-five".