861135115 has 8 divisors (see below), whose sum is σ = 1033533360. Its totient is φ = 688793952.

The previous prime is 861135103. The next prime is 861135133. The reversal of 861135115 is 511531168.

861135115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 861135115 - 2¹⁷ = 861004043 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33412 + ... + 53278.

It is an arithmetic number, because the mean of its divisors is an integer number (129191670).

Almost surely, 2^861135115 is an apocalyptic number.

861135115 is a deficient number, since it is larger than the sum of its proper divisors (172398245).

861135115 is a wasteful number, since it uses less digits than its factorization.

861135115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28541.

The product of its digits is 3600, while the sum is 31.

The square root of 861135115 is about 29345.1037653643. The cubic root of 861135115 is about 951.3867521886.

The spelling of 861135115 in words is "eight hundred sixty-one million, one hundred thirty-five thousand, one hundred fifteen".