8505105 has 16 divisors (see below), whose sum is σ = 15552384. Its totient is φ = 3888000.

The previous prime is 8505089. The next prime is 8505113. The reversal of 8505105 is 5015058.

It is not a de Polignac number, because 8505105 - 2⁴ = 8505089 is a prime.

It is a super-2 number, since 2×8505105² = 144673622122050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40396 + ... + 40605.

It is an arithmetic number, because the mean of its divisors is an integer number (972024).

Almost surely, 2^8505105 is an apocalyptic number.

It is an amenable number.

8505105 is a deficient number, since it is larger than the sum of its proper divisors (7047279).

8505105 is a wasteful number, since it uses less digits than its factorization.

8505105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81016.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 8505105 is about 2916.3513162855. The cubic root of 8505105 is about 204.1236034865.

It can be divided in two parts, 8505 and 105, that multiplied together give a square (893025 = 945²).

The spelling of 8505105 in words is "eight million, five hundred five thousand, one hundred five".