1115560 has 24 divisors (see below), whose sum is σ = 2525130. Its totient is φ = 443552.

The previous prime is 1115551. The next prime is 1115561. The reversal of 1115560 is 655111.

It can be written as a sum of positive squares in only one way, i.e., 1004004 + 111556 = 1002^2 + 334^2 .

It is a super-2 number, since 2×1115560² = 2488948227200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1115561) 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, 6597 + ... + 6763.

2^1115560 is an apocalyptic number.

1115560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1115560 is an abundant number, since it is smaller than the sum of its proper divisors (1409570).

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

1115560 is an equidigital number, since it uses as much as digits as its factorization.

1115560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1115560 is about 1056.2007384962. The cubic root of 1115560 is about 103.7124700954.

It can be divided in two parts, 111 and 5560, that added together give a triangular number (5671 = T₁₀₆).

The spelling of 1115560 in words is "one million, one hundred fifteen thousand, five hundred sixty".