1152180 has 72 divisors (see below), whose sum is σ = 3610152. Its totient is φ = 297216.

The previous prime is 1152163. The next prime is 1152181. The reversal of 1152180 is 812511.

1152180 is nontrivially palindromic in base 11.

It can be written as a sum of positive squares in 4 ways, for example, as 580644 + 571536 = 762^2 + 756^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152181) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6574 + ... + 6746.

It is an arithmetic number, because the mean of its divisors is an integer number (50141).

2^1152180 is an apocalyptic number.

1152180 is a gapful number since it is divisible by the number (10) 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 1152180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1805076).

1152180 is an abundant number, since it is smaller than the sum of its proper divisors (2457972).

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

1152180 is a wasteful number, since it uses less digits than its factorization.

1152180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 1152180 is about 1073.3964784738. The cubic root of 1152180 is about 104.8351153619.

Adding to 1152180 its reverse (812511), we get a palindrome (1964691).

The spelling of 1152180 in words is "one million, one hundred fifty-two thousand, one hundred eighty".