851105115 has 48 divisors (see below), whose sum is σ = 1689944256. Its totient is φ = 388166400.

The previous prime is 851105077. The next prime is 851105147. The reversal of 851105115 is 511501158.

It is not a de Polignac number, because 851105115 - 2¹⁰ = 851104091 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 142285 + ... + 148145.

It is an arithmetic number, because the mean of its divisors is an integer number (35207172).

Almost surely, 2^851105115 is an apocalyptic number.

851105115 is a deficient number, since it is larger than the sum of its proper divisors (838839141).

851105115 is a wasteful number, since it uses less digits than its factorization.

851105115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6340 (or 6337 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 27.

The square root of 851105115 is about 29173.7058838948. The cubic root of 851105115 is about 947.6785850241.

The spelling of 851105115 in words is "eight hundred fifty-one million, one hundred five thousand, one hundred fifteen".