1181120 has 28 divisors (see below), whose sum is σ = 2813304. Its totient is φ = 472320.

The previous prime is 1181099. The next prime is 1181137. The reversal of 1181120 is 211811.

It is a junction number, because it is equal to n+sod(n) for n = 1181095 and 1181104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1526 + ... + 2165.

2^1181120 is an apocalyptic number.

1181120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1181120 is an abundant number, since it is smaller than the sum of its proper divisors (1632184).

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

1181120 is an equidigital number, since it uses as much as digits as its factorization.

1181120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3708 (or 3698 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1181120 is about 1086.7934486369. The cubic root of 1181120 is about 105.7056029600.

Adding to 1181120 its reverse (211811), we get a palindrome (1392931).

The spelling of 1181120 in words is "one million, one hundred eighty-one thousand, one hundred twenty".