12845811 has 32 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 7257600.

The previous prime is 12845809. The next prime is 12845821. The reversal of 12845811 is 11854821.

It is a happy number.

12845811 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12845811 - 2¹ = 12845809 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (12845821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29451 + ... + 29883.

It is an arithmetic number, because the mean of its divisors is an integer number (624960).

Almost surely, 2^12845811 is an apocalyptic number.

12845811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12845811 is a deficient number, since it is larger than the sum of its proper divisors (7152909).

12845811 is a wasteful number, since it uses less digits than its factorization.

12845811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its digits is 2560, while the sum is 30.

The square root of 12845811 is about 3584.1053276934. The cubic root of 12845811 is about 234.2001538265.

The spelling of 12845811 in words is "twelve million, eight hundred forty-five thousand, eight hundred eleven".