12645575 has 6 divisors (see below), whose sum is σ = 15680544. Its totient is φ = 10116440.

The previous prime is 12645547. The next prime is 12645623. The reversal of 12645575 is 57554621.

12645575 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12645575 - 2⁸ = 12645319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252887 + ... + 252936.

It is an arithmetic number, because the mean of its divisors is an integer number (2613424).

Almost surely, 2^12645575 is an apocalyptic number.

12645575 is a deficient number, since it is larger than the sum of its proper divisors (3034969).

12645575 is an equidigital number, since it uses as much as digits as its factorization.

12645575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505833 (or 505828 counting only the distinct ones).

The product of its digits is 42000, while the sum is 35.

The square root of 12645575 is about 3556.0617261234. The cubic root of 12645575 is about 232.9768991078.

The spelling of 12645575 in words is "twelve million, six hundred forty-five thousand, five hundred seventy-five".