861134163 has 8 divisors (see below), whose sum is σ = 1150660608. Its totient is φ = 572848584.

The previous prime is 861134161. The next prime is 861134171. The reversal of 861134163 is 361431168.

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

It is not a de Polignac number, because 861134163 - 2¹ = 861134161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (861134161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308595 + ... + 311372.

It is an arithmetic number, because the mean of its divisors is an integer number (143832576).

Almost surely, 2^861134163 is an apocalyptic number.

861134163 is a deficient number, since it is larger than the sum of its proper divisors (289526445).

861134163 is a wasteful number, since it uses less digits than its factorization.

861134163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620433.

The product of its digits is 10368, while the sum is 33.

The square root of 861134163 is about 29345.0875445959. The cubic root of 861134163 is about 951.3864015968.

The spelling of 861134163 in words is "eight hundred sixty-one million, one hundred thirty-four thousand, one hundred sixty-three".