1161318 has 32 divisors (see below), whose sum is σ = 2499840. Its totient is φ = 358560.

The previous prime is 1161317. The next prime is 1161331. The reversal of 1161318 is 8131611.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1161294 and 1161303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6871 + ... + 7037.

It is an arithmetic number, because the mean of its divisors is an integer number (78120).

2^1161318 is an apocalyptic number.

1161318 is an abundant number, since it is smaller than the sum of its proper divisors (1338522).

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

1161318 is a wasteful number, since it uses less digits than its factorization.

1161318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its digits is 144, while the sum is 21.

The square root of 1161318 is about 1077.6446538632. The cubic root of 1161318 is about 105.1115368063. Note that the first 3 decimals are identical.

Adding to 1161318 its reverse (8131611), we get a palindrome (9292929).

The spelling of 1161318 in words is "one million, one hundred sixty-one thousand, three hundred eighteen".