845125 has 8 divisors (see below), whose sum is σ = 1054872. Its totient is φ = 676000.

The previous prime is 845111. The next prime is 845129. The reversal of 845125 is 521548.

845125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2401 + 842724 = 49^2 + 918^2 .

It is a de Polignac number, because none of the positive numbers 2^k-845125 is a prime.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 845125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3256 + ... + 3505.

It is an arithmetic number, because the mean of its divisors is an integer number (131859).

2⁸⁴⁵¹²⁵ is an apocalyptic number.

It is an amenable number.

845125 is a deficient number, since it is larger than the sum of its proper divisors (209747).

845125 is an equidigital number, since it uses as much as digits as its factorization.

845125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6776 (or 6766 counting only the distinct ones).

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

The square root of 845125 is about 919.3068040649. The cubic root of 845125 is about 94.5453810012.

It can be divided in two parts, 845 and 125, that multiplied together give a square (105625 = 325²).

The spelling of 845125 in words is "eight hundred forty-five thousand, one hundred twenty-five".