12545687 has 16 divisors (see below), whose sum is σ = 15903744. Its totient is φ = 9612000.

The previous prime is 12545671. The next prime is 12545693. The reversal of 12545687 is 78654521.

It is a cyclic number.

It is not a de Polignac number, because 12545687 - 2⁴ = 12545671 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12545687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12545647) 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 15 ways as a sum of consecutive naturals, for example, 3362 + ... + 6032.

It is an arithmetic number, because the mean of its divisors is an integer number (993984).

Almost surely, 2^12545687 is an apocalyptic number.

12545687 is a deficient number, since it is larger than the sum of its proper divisors (3358057).

12545687 is a wasteful number, since it uses less digits than its factorization.

12545687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2750.

The product of its digits is 67200, while the sum is 38.

The square root of 12545687 is about 3541.9891304181. The cubic root of 12545687 is about 232.3618449274.

The spelling of 12545687 in words is "twelve million, five hundred forty-five thousand, six hundred eighty-seven".