1115712 has 84 divisors (see below), whose sum is σ = 3467100. Its totient is φ = 340992.

The previous prime is 1115711. The next prime is 1115713. The reversal of 1115712 is 2175111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1115711) and next prime (1115713).

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 968256 = 384^2 + 984^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1115711) 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 11 ways as a sum of consecutive naturals, for example, 7414 + ... + 7562.

It is an arithmetic number, because the mean of its divisors is an integer number (41275).

2^1115712 is an apocalyptic number.

1115712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733550).

1115712 is an abundant number, since it is smaller than the sum of its proper divisors (2351388).

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

1115712 is a wasteful number, since it uses less digits than its factorization.

1115712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180 (or 167 counting only the distinct ones).

The product of its digits is 70, while the sum is 18.

The square root of 1115712 is about 1056.2726920639. The cubic root of 1115712 is about 103.7171803096.

The spelling of 1115712 in words is "one million, one hundred fifteen thousand, seven hundred twelve".