813894195 has 8 divisors (see below), whose sum is σ = 1302230736. Its totient is φ = 434076896.

The previous prime is 813894163. The next prime is 813894209. The reversal of 813894195 is 591498318.

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

It is a cyclic number.

It is not a de Polignac number, because 813894195 - 2⁵ = 813894163 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27129792 + ... + 27129821.

It is an arithmetic number, because the mean of its divisors is an integer number (162778842).

Almost surely, 2^813894195 is an apocalyptic number.

813894195 is a deficient number, since it is larger than the sum of its proper divisors (488336541).

813894195 is a wasteful number, since it uses less digits than its factorization.

813894195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54259621.

The product of its digits is 311040, while the sum is 48.

The square root of 813894195 is about 28528.8309434509. The cubic root of 813894195 is about 933.6612122548.

The spelling of 813894195 in words is "eight hundred thirteen million, eight hundred ninety-four thousand, one hundred ninety-five".