1181322 has 12 divisors (see below), whose sum is σ = 2559570. Its totient is φ = 393768.

The previous prime is 1181321. The next prime is 1181329. The reversal of 1181322 is 2231811.

It can be written as a sum of positive squares in only one way, i.e., 1022121 + 159201 = 1011^2 + 399^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 65629 = 1181322 / (1 + 1 + 8 + 1 + 3 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1181295 and 1181304.

It is not an unprimeable number, because it can be changed into a prime (1181321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32797 + ... + 32832.

2^1181322 is an apocalyptic number.

1181322 is an abundant number, since it is smaller than the sum of its proper divisors (1378248).

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

1181322 is a wasteful number, since it uses less digits than its factorization.

1181322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65637 (or 65634 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 1181322 is about 1086.8863786063. The cubic root of 1181322 is about 105.7116286855.

The spelling of 1181322 in words is "one million, one hundred eighty-one thousand, three hundred twenty-two".