812268163 has 16 divisors (see below), whose sum is σ = 976608000. Its totient is φ = 660818592.

The previous prime is 812268133. The next prime is 812268167. The reversal of 812268163 is 361862218.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-812268163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812268167) 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 15 ways as a sum of consecutive naturals, for example, 21933 + ... + 45886.

It is an arithmetic number, because the mean of its divisors is an integer number (61038000).

Almost surely, 2^812268163 is an apocalyptic number.

812268163 is a deficient number, since it is larger than the sum of its proper divisors (164339837).

812268163 is a wasteful number, since it uses less digits than its factorization.

812268163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67914.

The product of its digits is 27648, while the sum is 37.

The square root of 812268163 is about 28500.3186473415. The cubic root of 812268163 is about 933.0390285370.

The spelling of 812268163 in words is "eight hundred twelve million, two hundred sixty-eight thousand, one hundred sixty-three".