1117332161 has 8 divisors (see below), whose sum is σ = 1224141984. Its totient is φ = 1011394720.

The previous prime is 1117332137. The next prime is 1117332193. The reversal of 1117332161 is 1612337111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117332161 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117332161.

It is not an unprimeable number, because it can be changed into a prime (1117332131) 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 7 ways as a sum of consecutive naturals, for example, 215411 + ... + 220536.

It is an arithmetic number, because the mean of its divisors is an integer number (153017748).

Almost surely, 2^1117332161 is an apocalyptic number.

1117332161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1117332161 is a deficient number, since it is larger than the sum of its proper divisors (106809823).

1117332161 is a wasteful number, since it uses less digits than its factorization.

1117332161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436191.

The product of its digits is 756, while the sum is 26.

The square root of 1117332161 is about 33426.5188286187. The cubic root of 1117332161 is about 1037.6735970416.

Adding to 1117332161 its reverse (1612337111), we get a palindrome (2729669272).

It can be divided in two parts, 11173 and 32161, that added together give a palindrome (43334).

The spelling of 1117332161 in words is "one billion, one hundred seventeen million, three hundred thirty-two thousand, one hundred sixty-one".