7865135 has 12 divisors (see below), whose sum is σ = 10027848. Its totient is φ = 5920896.

The previous prime is 7865131. The next prime is 7865159. The reversal of 7865135 is 5315687.

It is not a de Polignac number, because 7865135 - 2² = 7865131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7865095 and 7865104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7865131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1277 + ... + 4166.

It is an arithmetic number, because the mean of its divisors is an integer number (835654).

Almost surely, 2^7865135 is an apocalyptic number.

7865135 is a deficient number, since it is larger than the sum of its proper divisors (2162713).

7865135 is a wasteful number, since it uses less digits than its factorization.

7865135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5482 (or 5465 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 7865135 is about 2804.4848011712. The cubic root of 7865135 is about 198.8697497035.

It can be divided in two parts, 7865 and 135, that added together give a cube (8000 = 20³).

The spelling of 7865135 in words is "seven million, eight hundred sixty-five thousand, one hundred thirty-five".