12645807 has 8 divisors (see below), whose sum is σ = 17852976. Its totient is φ = 7934592.

The previous prime is 12645757. The next prime is 12645821. The reversal of 12645807 is 70854621.

12645807 is digitally balanced in base 3, 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 a de Polignac number, because none of the positive numbers 2^k-12645807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123928 + ... + 124029.

It is an arithmetic number, because the mean of its divisors is an integer number (2231622).

Almost surely, 2^12645807 is an apocalyptic number.

12645807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12645807 is a deficient number, since it is larger than the sum of its proper divisors (5207169).

12645807 is a wasteful number, since it uses less digits than its factorization.

12645807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247977.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 12645807 is about 3556.0943463300. The cubic root of 12645807 is about 232.9783238568.

The spelling of 12645807 in words is "twelve million, six hundred forty-five thousand, eight hundred seven".