825115 has 8 divisors (see below), whose sum is σ = 1007280. Its totient is φ = 648672.

The previous prime is 825109. The next prime is 825131. The reversal of 825115 is 511528.

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 825115 - 2³ = 825107 is a prime.

It is an Ulam number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1104 + ... + 1693.

It is an arithmetic number, because the mean of its divisors is an integer number (125910).

2⁸²⁵¹¹⁵ is an apocalyptic number.

825115 is a deficient number, since it is larger than the sum of its proper divisors (182165).

825115 is a wasteful number, since it uses less digits than its factorization.

825115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2861.

The product of its digits is 400, while the sum is 22.

The square root of 825115 is about 908.3584094398. The cubic root of 825115 is about 93.7932304327.

The spelling of 825115 in words is "eight hundred twenty-five thousand, one hundred fifteen".