12845818 has 4 divisors (see below), whose sum is σ = 19268730. Its totient is φ = 6422908.

The previous prime is 12845809. The next prime is 12845821. The reversal of 12845818 is 81854821.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 11068929 + 1776889 = 3327^2 + 1333^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3211453 + ... + 3211456.

Almost surely, 2^12845818 is an apocalyptic number.

12845818 is a deficient number, since it is larger than the sum of its proper divisors (6422912).

12845818 is an equidigital number, since it uses as much as digits as its factorization.

12845818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422911.

The product of its digits is 20480, while the sum is 37.

The square root of 12845818 is about 3584.1063042270. The cubic root of 12845818 is about 234.2001963670.

The spelling of 12845818 in words is "twelve million, eight hundred forty-five thousand, eight hundred eighteen".