825145 has 8 divisors (see below), whose sum is σ = 995904. Its totient is φ = 656304.

The previous prime is 825131. The next prime is 825161. The reversal of 825145 is 541528.

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 825145 - 2⁷ = 825017 is a prime.

It is a Duffinian 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, 772 + ... + 1498.

It is an arithmetic number, because the mean of its divisors is an integer number (124488).

2⁸²⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

825145 is a deficient number, since it is larger than the sum of its proper divisors (170759).

825145 is a wasteful number, since it uses less digits than its factorization.

825145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 959.

The product of its digits is 1600, while the sum is 25.

The square root of 825145 is about 908.3749225953. The cubic root of 825145 is about 93.7943671481.

The spelling of 825145 in words is "eight hundred twenty-five thousand, one hundred forty-five".