12512685 has 32 divisors (see below), whose sum is σ = 21012480. Its totient is φ = 6350400.

The previous prime is 12512681. The next prime is 12512693. The reversal of 12512685 is 58621521.

It is not a de Polignac number, because 12512685 - 2² = 12512681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12512681) 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 31 ways as a sum of consecutive naturals, for example, 32826 + ... + 33204.

It is an arithmetic number, because the mean of its divisors is an integer number (656640).

Almost surely, 2^12512685 is an apocalyptic number.

12512685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12512685 is a deficient number, since it is larger than the sum of its proper divisors (8499795).

12512685 is a wasteful number, since it uses less digits than its factorization.

12512685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489.

The product of its digits is 4800, while the sum is 30.

The square root of 12512685 is about 3537.3273809474. The cubic root of 12512685 is about 232.1579198792.

The spelling of 12512685 in words is "twelve million, five hundred twelve thousand, six hundred eighty-five".