12657085 has 16 divisors (see below), whose sum is σ = 17571456. Its totient is φ = 8572608.

The previous prime is 12657077. The next prime is 12657091. The reversal of 12657085 is 58075621.

It is a cyclic number.

It is not a de Polignac number, because 12657085 - 2³ = 12657077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12657085.

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 15 ways as a sum of consecutive naturals, for example, 727 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (1098216).

Almost surely, 2^12657085 is an apocalyptic number.

12657085 is the 2905-th pentagonal number.

It is an amenable number.

12657085 is a deficient number, since it is larger than the sum of its proper divisors (4914371).

12657085 is an equidigital number, since it uses as much as digits as its factorization.

12657085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4452.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 12657085 is about 3557.6797213915. The cubic root of 12657085 is about 233.0475628494.

The spelling of 12657085 in words is "twelve million, six hundred fifty-seven thousand, eighty-five".