1171056 has 40 divisors (see below), whose sum is σ = 3126784. Its totient is φ = 377280.

The previous prime is 1171039. The next prime is 1171057. The reversal of 1171056 is 6501711.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1095 + ... + 1881.

2^1171056 is an apocalyptic number.

1171056 is a gapful number since it is divisible by the number (16) 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 1171056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563392).

1171056 is an abundant number, since it is smaller than the sum of its proper divisors (1955728).

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

1171056 is a wasteful number, since it uses less digits than its factorization.

1171056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 829 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

The square root of 1171056 is about 1082.1534087180. The cubic root of 1171056 is about 105.4045166796.

Adding to 1171056 its reverse (6501711), we get a palindrome (7672767).

The spelling of 1171056 in words is "one million, one hundred seventy-one thousand, fifty-six".