12585407 has 4 divisors (see below), whose sum is σ = 12598560. Its totient is φ = 12572256.

The previous prime is 12585403. The next prime is 12585409. The reversal of 12585407 is 70458521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12585407 - 2² = 12585403 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12585403) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5018 + ... + 7095.

It is an arithmetic number, because the mean of its divisors is an integer number (3149640).

Almost surely, 2^12585407 is an apocalyptic number.

12585407 is a deficient number, since it is larger than the sum of its proper divisors (13153).

12585407 is a wasteful number, since it uses less digits than its factorization.

12585407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 12585407 is about 3547.5917183351. The cubic root of 12585407 is about 232.6068079808.

The spelling of 12585407 in words is "twelve million, five hundred eighty-five thousand, four hundred seven".