1130520 has 32 divisors (see below), whose sum is σ = 3391920. Its totient is φ = 301440.

The previous prime is 1130501. The next prime is 1130527. The reversal of 1130520 is 250311.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1130496 and 1130505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4591 + ... + 4830.

2^1130520 is an apocalyptic number.

1130520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1130520 is an abundant number, since it is smaller than the sum of its proper divisors (2261400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1130520 is a wasteful number, since it uses less digits than its factorization.

1130520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9435 (or 9431 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 1130520 is about 1063.2591405673. The cubic root of 1130520 is about 104.1740183256.

Adding to 1130520 its reverse (250311), we get a palindrome (1380831).

It can be divided in two parts, 11305 and 20, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 1130520 in words is "one million, one hundred thirty thousand, five hundred twenty".