1181117084 has 36 divisors (see below), whose sum is σ = 2407805904. Its totient is φ = 496609152.

The previous prime is 1181117059. The next prime is 1181117087. The reversal of 1181117084 is 4807111811.

It is a super-2 number, since 2×1181117084² = 2790075132233326112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1181117084.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1181117087) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71144 + ... + 86160.

Almost surely, 2^1181117084 is an apocalyptic number.

1181117084 is a gapful number since it is divisible by the number (14) 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 1181117084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1203902952).

1181117084 is an abundant number, since it is smaller than the sum of its proper divisors (1226688820).

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

1181117084 is a wasteful number, since it uses less digits than its factorization.

1181117084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15134 (or 15079 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 32.

The square root of 1181117084 is about 34367.3840144984. The cubic root of 1181117084 is about 1057.0551596978.

Adding to 1181117084 its reverse (4807111811), we get a palindrome (5988228895).

The spelling of 1181117084 in words is "one billion, one hundred eighty-one million, one hundred seventeen thousand, eighty-four".