1115656 has 8 divisors (see below), whose sum is σ = 2091870. Its totient is φ = 557824.

The previous prime is 1115641. The next prime is 1115657. The reversal of 1115656 is 6565111.

It can be written as a sum of positive squares in only one way, i.e., 1060900 + 54756 = 1030^2 + 234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1115656.

It is not an unprimeable number, because it can be changed into a prime (1115657) 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 as a sum of consecutive naturals, namely, 69721 + ... + 69736.

2^1115656 is an apocalyptic number.

It is an amenable number.

1115656 is a deficient number, since it is larger than the sum of its proper divisors (976214).

1115656 is a wasteful number, since it uses less digits than its factorization.

1115656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139463 (or 139459 counting only the distinct ones).

The product of its digits is 900, while the sum is 25.

The square root of 1115656 is about 1056.2461834251. The cubic root of 1115656 is about 103.7154450173.

It can be divided in two parts, 1115 and 656, that added together give a palindrome (1771).

The spelling of 1115656 in words is "one million, one hundred fifteen thousand, six hundred fifty-six".