130825 has 6 divisors (see below), whose sum is σ = 162254. Its totient is φ = 104640.

The previous prime is 130817. The next prime is 130829. The reversal of 130825 is 528031.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 35344 + 95481 = 188^2 + 309^2 .

It is not a de Polignac number, because 130825 - 2³ = 130817 is a prime.

It is a Duffinian number.

130825 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (130829) 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 5 ways as a sum of consecutive naturals, for example, 2592 + ... + 2641.

2¹³⁰⁸²⁵ is an apocalyptic number.

It is an amenable number.

130825 is a deficient number, since it is larger than the sum of its proper divisors (31429).

130825 is an equidigital number, since it uses as much as digits as its factorization.

130825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5243 (or 5238 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 130825 is about 361.6973873281. The cubic root of 130825 is about 50.7649053907.

Adding to 130825 its reverse (528031), we get a palindrome (658856).

The spelling of 130825 in words is "one hundred thirty thousand, eight hundred twenty-five".