8125905 has 8 divisors (see below), whose sum is σ = 13001472. Its totient is φ = 4333808.

The previous prime is 8125883. The next prime is 8125921. The reversal of 8125905 is 5095218.

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 8125905 - 2¹⁶ = 8060369 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270849 + ... + 270878.

It is an arithmetic number, because the mean of its divisors is an integer number (1625184).

Almost surely, 2^8125905 is an apocalyptic number.

It is an amenable number.

8125905 is a deficient number, since it is larger than the sum of its proper divisors (4875567).

8125905 is a wasteful number, since it uses less digits than its factorization.

8125905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541735.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 8125905 is about 2850.5973058291. The cubic root of 8125905 is about 201.0437517689.

The spelling of 8125905 in words is "eight million, one hundred twenty-five thousand, nine hundred five".