1115685 has 12 divisors (see below), whose sum is σ = 1933932. Its totient is φ = 595008.

The previous prime is 1115683. The next prime is 1115701. The reversal of 1115685 is 5865111.

It can be written as a sum of positive squares in 2 ways, for example, as 820836 + 294849 = 906^2 + 543^2 .

It is not a de Polignac number, because 1115685 - 2¹ = 1115683 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115683) 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 11 ways as a sum of consecutive naturals, for example, 12352 + ... + 12441.

It is an arithmetic number, because the mean of its divisors is an integer number (161161).

2^1115685 is an apocalyptic number.

1115685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115685 is a deficient number, since it is larger than the sum of its proper divisors (818247).

1115685 is a wasteful number, since it uses less digits than its factorization.

1115685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24804 (or 24801 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

The square root of 1115685 is about 1056.2599111961. The cubic root of 1115685 is about 103.7163436580.

The spelling of 1115685 in words is "one million, one hundred fifteen thousand, six hundred eighty-five".