818325 has 18 divisors (see below), whose sum is σ = 1466114. Its totient is φ = 436320.

The previous prime is 818309. The next prime is 818327. The reversal of 818325 is 523818.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 2916 + 815409 = 54^2 + 903^2 .

It is not a de Polignac number, because 818325 - 2⁴ = 818309 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (818327) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 1594 + ... + 2043.

2⁸¹⁸³²⁵ is an apocalyptic number.

It is an amenable number.

818325 is a deficient number, since it is larger than the sum of its proper divisors (647789).

818325 is a wasteful number, since it uses less digits than its factorization.

818325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3653 (or 3645 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 818325 is about 904.6131769989. The cubic root of 818325 is about 93.5352417505.

The spelling of 818325 in words is "eight hundred eighteen thousand, three hundred twenty-five".