812851201 has 16 divisors (see below), whose sum is σ = 838252800. Its totient is φ = 787930000.

The previous prime is 812851157. The next prime is 812851219. The reversal of 812851201 is 102158218.

It is a cyclic number.

It is not a de Polignac number, because 812851201 - 2¹⁹ = 812326913 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 812851201.

It is not an unprimeable number, because it can be changed into a prime (812855201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1939770 + ... + 1940188.

It is an arithmetic number, because the mean of its divisors is an integer number (52390800).

Almost surely, 2^812851201 is an apocalyptic number.

It is an amenable number.

812851201 is a deficient number, since it is larger than the sum of its proper divisors (25401599).

812851201 is a wasteful number, since it uses less digits than its factorization.

812851201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 1280, while the sum is 28.

The square root of 812851201 is about 28510.5454349790. The cubic root of 812851201 is about 933.2622171863.

The spelling of 812851201 in words is "eight hundred twelve million, eight hundred fifty-one thousand, two hundred one".