1130825 has 6 divisors (see below), whose sum is σ = 1402254. Its totient is φ = 904640.

The previous prime is 1130819. The next prime is 1130827. The reversal of 1130825 is 5280311.

It can be written as a sum of positive squares in 3 ways, for example, as 322624 + 808201 = 568^2 + 899^2 .

It is not a de Polignac number, because 1130825 - 2⁴ = 1130809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130797 and 1130806.

It is not an unprimeable number, because it can be changed into a prime (1130827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22592 + ... + 22641.

It is an arithmetic number, because the mean of its divisors is an integer number (233709).

2^1130825 is an apocalyptic number.

It is an amenable number.

1130825 is a deficient number, since it is larger than the sum of its proper divisors (271429).

1130825 is an equidigital number, since it uses as much as digits as its factorization.

1130825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45243 (or 45238 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1130825 is about 1063.4025578303. The cubic root of 1130825 is about 104.1833857608.

The spelling of 1130825 in words is "one million, one hundred thirty thousand, eight hundred twenty-five".