12845135 has 4 divisors (see below), whose sum is σ = 15414168. Its totient is φ = 10276104.

The previous prime is 12845123. The next prime is 12845137. The reversal of 12845135 is 53154821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12845135 - 2⁶ = 12845071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12845098 and 12845107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12845137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1284509 + ... + 1284518.

It is an arithmetic number, because the mean of its divisors is an integer number (3853542).

Almost surely, 2^12845135 is an apocalyptic number.

12845135 is a deficient number, since it is larger than the sum of its proper divisors (2569033).

12845135 is an equidigital number, since it uses as much as digits as its factorization.

12845135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569032.

The product of its digits is 4800, while the sum is 29.

The square root of 12845135 is about 3584.0110211884. The cubic root of 12845135 is about 234.1960455591.

Adding to 12845135 its reverse (53154821), we get a palindrome (65999956).

The spelling of 12845135 in words is "twelve million, eight hundred forty-five thousand, one hundred thirty-five".