8125135 has 4 divisors (see below), whose sum is σ = 9750168. Its totient is φ = 6500104.

The previous prime is 8125127. The next prime is 8125153. The reversal of 8125135 is 5315218.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5315218 = 2 ⋅2657609.

It is a cyclic number.

It is not a de Polignac number, because 8125135 - 2³ = 8125127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 812509 + ... + 812518.

It is an arithmetic number, because the mean of its divisors is an integer number (2437542).

Almost surely, 2^8125135 is an apocalyptic number.

8125135 is a deficient number, since it is larger than the sum of its proper divisors (1625033).

8125135 is a wasteful number, since it uses less digits than its factorization.

8125135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625032.

The product of its digits is 1200, while the sum is 25.

The square root of 8125135 is about 2850.4622432160. The cubic root of 8125135 is about 201.0374013550.

The spelling of 8125135 in words is "eight million, one hundred twenty-five thousand, one hundred thirty-five".