12645315 has 20 divisors (see below), whose sum is σ = 22668624. Its totient is φ = 6743952.

The previous prime is 12645287. The next prime is 12645319. The reversal of 12645315 is 51354621.

12645315 is a `hidden beast` number, since 1 + 2 + 645 + 3 + 15 = 666.

12645315 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 12645315 - 2⁹ = 12644803 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12645319) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15207 + ... + 16016.

Almost surely, 2^12645315 is an apocalyptic number.

12645315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12645315 is a deficient number, since it is larger than the sum of its proper divisors (10023309).

12645315 is an equidigital number, since it uses as much as digits as its factorization.

12645315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31240 (or 31231 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 12645315 is about 3556.0251686398. The cubic root of 12645315 is about 232.9753023857.

Adding to 12645315 its reverse (51354621), we get a palindrome (63999936).

The spelling of 12645315 in words is "twelve million, six hundred forty-five thousand, three hundred fifteen".