812141218 has 16 divisors (see below), whose sum is σ = 1401113664. Its totient is φ = 345842640.

The previous prime is 812141203. The next prime is 812141227.

812141218 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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, 182548 + ... + 186943.

It is an arithmetic number, because the mean of its divisors is an integer number (87569604).

Almost surely, 2^812141218 is an apocalyptic number.

812141218 is a deficient number, since it is larger than the sum of its proper divisors (588972446).

812141218 is a wasteful number, since it uses less digits than its factorization.

812141218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369657.

The product of its digits is 1024, while the sum is 28.

The square root of 812141218 is about 28498.0914799570. The cubic root of 812141218 is about 932.9904194627.

The spelling of 812141218 in words is "eight hundred twelve million, one hundred forty-one thousand, two hundred eighteen".