812748195 has 32 divisors (see below), whose sum is σ = 1651299840. Its totient is φ = 371541600.

The previous prime is 812748169. The next prime is 812748227. The reversal of 812748195 is 591847218.

812748195 is a `hidden beast` number, since 81 + 2 + 7 + 481 + 95 = 666.

It is not a de Polignac number, because 812748195 - 2¹³ = 812740003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 812748195.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429081 + ... + 430970.

It is an arithmetic number, because the mean of its divisors is an integer number (51603120).

Almost surely, 2^812748195 is an apocalyptic number.

812748195 is an abundant number, since it is smaller than the sum of its proper divisors (838551645).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812748195 is a wasteful number, since it uses less digits than its factorization.

812748195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860072 (or 860066 counting only the distinct ones).

The product of its digits is 161280, while the sum is 45.

The square root of 812748195 is about 28508.7389233547. The cubic root of 812748195 is about 933.2227939524. Note that the first 3 decimals are identical.

The spelling of 812748195 in words is "eight hundred twelve million, seven hundred forty-eight thousand, one hundred ninety-five".