1115080 has 32 divisors (see below), whose sum is σ = 2555640. Its totient is φ = 437760.

The previous prime is 1115071. The next prime is 1115089. The reversal of 1115080 is 805111.

It is an interprime number because it is at equal distance from previous prime (1115071) and next prime (1115089).

It can be written as a sum of positive squares in 4 ways, for example, as 799236 + 315844 = 894^2 + 562^2 .

It is not an unprimeable number, because it can be changed into a prime (1115089) 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 7 ways as a sum of consecutive naturals, for example, 2212 + ... + 2668.

2^1115080 is an apocalyptic number.

1115080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115080 is the 610-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1277820).

1115080 is an abundant number, since it is smaller than the sum of its proper divisors (1440560).

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

1115080 is a wasteful number, since it uses less digits than its factorization.

1115080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 1115080 is about 1055.9734845156. The cubic root of 1115080 is about 103.6975929254.

The spelling of 1115080 in words is "one million, one hundred fifteen thousand, eighty".