812225163 has 8 divisors (see below), whose sum is σ = 1092902800. Its totient is φ = 536515488.

The previous prime is 812225153. The next prime is 812225177. The reversal of 812225163 is 361522218.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 812225163 - 2¹⁶ = 812159627 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 812225163.

It is not an unprimeable number, because it can be changed into a prime (812225153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241608 + ... + 1242261.

It is an arithmetic number, because the mean of its divisors is an integer number (136612850).

Almost surely, 2^812225163 is an apocalyptic number.

812225163 is a deficient number, since it is larger than the sum of its proper divisors (280677637).

812225163 is a wasteful number, since it uses less digits than its factorization.

812225163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2483981.

The product of its digits is 5760, while the sum is 30.

The square root of 812225163 is about 28499.5642598269. The cubic root of 812225163 is about 933.0225637831.

The spelling of 812225163 in words is "eight hundred twelve million, two hundred twenty-five thousand, one hundred sixty-three".