12645415 has 8 divisors (see below), whose sum is σ = 15202800. Its totient is φ = 10097472.

The previous prime is 12645403. The next prime is 12645419. The reversal of 12645415 is 51454621.

12645415 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 cyclic number.

It is not a de Polignac number, because 12645415 - 2⁵ = 12645383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12645419) 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 7 ways as a sum of consecutive naturals, for example, 1036 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (1900350).

Almost surely, 2^12645415 is an apocalyptic number.

12645415 is a deficient number, since it is larger than the sum of its proper divisors (2557385).

12645415 is an equidigital number, since it uses as much as digits as its factorization.

12645415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4721.

The product of its digits is 4800, while the sum is 28.

The square root of 12645415 is about 3556.0392292549. The cubic root of 12645415 is about 232.9759165121.

The spelling of 12645415 in words is "twelve million, six hundred forty-five thousand, four hundred fifteen".