1171456 has 56 divisors (see below), whose sum is σ = 2752344. Its totient is φ = 491520.

The previous prime is 1171451. The next prime is 1171463. The reversal of 1171456 is 6541711.

1171456 = T₄₅₆ + T₄₅₇ + ... + T₄₆₆.

It is a happy number.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1171456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171451) 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 3 ways as a sum of consecutive naturals, for example, 90106 + ... + 90118.

It is an arithmetic number, because the mean of its divisors is an integer number (49149).

2^1171456 is an apocalyptic number.

1171456 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 1171456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1376172).

1171456 is an abundant number, since it is smaller than the sum of its proper divisors (1580888).

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

1171456 is an equidigital number, since it uses as much as digits as its factorization.

1171456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50 (or 26 counting only the distinct ones).

The product of its digits is 840, while the sum is 25.

The square root of 1171456 is about 1082.3382096184. The cubic root of 1171456 is about 105.4165163924.

The spelling of 1171456 in words is "one million, one hundred seventy-one thousand, four hundred fifty-six".