12807505 has 8 divisors (see below), whose sum is σ = 15450624. Its totient is φ = 10191600.

The previous prime is 12807497. The next prime is 12807517. The reversal of 12807505 is 50570821.

12807505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12807505 - 2³ = 12807497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5751 + ... + 7660.

It is an arithmetic number, because the mean of its divisors is an integer number (1931328).

Almost surely, 2^12807505 is an apocalyptic number.

It is an amenable number.

12807505 is a deficient number, since it is larger than the sum of its proper divisors (2643119).

12807505 is a wasteful number, since it uses less digits than its factorization.

12807505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607.

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 12807505 is about 3578.7574659370. The cubic root of 12807505 is about 233.9671283603.

The spelling of 12807505 in words is "twelve million, eight hundred seven thousand, five hundred five".