812851195 has 16 divisors (see below), whose sum is σ = 1070278272. Its totient is φ = 588931200.

The previous prime is 812851157. The next prime is 812851219. The reversal of 812851195 is 591158218.

It is not a de Polignac number, because 812851195 - 2²³ = 804462587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 114531 + ... + 121420.

It is an arithmetic number, because the mean of its divisors is an integer number (66892392).

Almost surely, 2^812851195 is an apocalyptic number.

812851195 is a deficient number, since it is larger than the sum of its proper divisors (257427077).

812851195 is a wasteful number, since it uses less digits than its factorization.

812851195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236022.

The product of its digits is 28800, while the sum is 40.

The square root of 812851195 is about 28510.5453297547. The cubic root of 812851195 is about 933.2622148900.

The spelling of 812851195 in words is "eight hundred twelve million, eight hundred fifty-one thousand, one hundred ninety-five".