8109135 has 24 divisors (see below), whose sum is σ = 14511744. Its totient is φ = 4184640.

The previous prime is 8109131. The next prime is 8109139. The reversal of 8109135 is 5319018.

It is an interprime number because it is at equal distance from previous prime (8109131) and next prime (8109139).

It is not a de Polignac number, because 8109135 - 2² = 8109131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8109099 and 8109108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8109131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1512 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (604656).

Almost surely, 2^8109135 is an apocalyptic number.

8109135 is a deficient number, since it is larger than the sum of its proper divisors (6402609).

8109135 is a wasteful number, since it uses less digits than its factorization.

8109135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5855 (or 5852 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 8109135 is about 2847.6542978388. The cubic root of 8109135 is about 200.9053538216.

The spelling of 8109135 in words is "eight million, one hundred nine thousand, one hundred thirty-five".