1171120 has 20 divisors (see below), whose sum is σ = 2723040. Its totient is φ = 468416.

The previous prime is 1171117. The next prime is 1171123. The reversal of 1171120 is 211711.

It is an interprime number because it is at equal distance from previous prime (1171117) and next prime (1171123).

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 1171120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171123) 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 3 ways as a sum of consecutive naturals, for example, 7240 + ... + 7399.

It is an arithmetic number, because the mean of its divisors is an integer number (136152).

2^1171120 is an apocalyptic number.

1171120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1171120 is an abundant number, since it is smaller than the sum of its proper divisors (1551920).

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

1171120 is a wasteful number, since it uses less digits than its factorization.

1171120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14652 (or 14646 counting only the distinct ones).

The product of its (nonzero) digits is 14, while the sum is 13.

The square root of 1171120 is about 1082.1829789828. The cubic root of 1171120 is about 105.4064368173.

Adding to 1171120 its reverse (211711), we get a palindrome (1382831).

The spelling of 1171120 in words is "one million, one hundred seventy-one thousand, one hundred twenty".