8102505 has 8 divisors (see below), whose sum is σ = 12964032. Its totient is φ = 4321328.

The previous prime is 8102459. The next prime is 8102537. The reversal of 8102505 is 5052018.

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 8102505 - 2⁶ = 8102441 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270069 + ... + 270098.

It is an arithmetic number, because the mean of its divisors is an integer number (1620504).

Almost surely, 2^8102505 is an apocalyptic number.

It is an amenable number.

8102505 is a deficient number, since it is larger than the sum of its proper divisors (4861527).

8102505 is a wasteful number, since it uses less digits than its factorization.

8102505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540175.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 8102505 is about 2846.4899437729. The cubic root of 8102505 is about 200.8505857247.

The spelling of 8102505 in words is "eight million, one hundred two thousand, five hundred five".