1168811047 has 16 divisors (see below), whose sum is σ = 1262653920. Its totient is φ = 1077931008.

The previous prime is 1168811029. The next prime is 1168811051. The reversal of 1168811047 is 7401188611.

It is a cyclic number.

It is not a de Polignac number, because 1168811047 - 2⁷ = 1168810919 is a prime.

It is a super-2 number, since 2×1168811047² = 2732238527178472418, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1168810997 and 1168811015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1168814047) 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, 221779 + ... + 226987.

It is an arithmetic number, because the mean of its divisors is an integer number (78915870).

Almost surely, 2^1168811047 is an apocalyptic number.

1168811047 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1168811047 is a deficient number, since it is larger than the sum of its proper divisors (93842873).

1168811047 is a wasteful number, since it uses less digits than its factorization.

1168811047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5490.

The product of its (nonzero) digits is 10752, while the sum is 37.

The square root of 1168811047 is about 34187.8786560383. The cubic root of 1168811047 is about 1053.3711894765.

Adding to 1168811047 its reverse (7401188611), we get a palindrome (8569999658).

The spelling of 1168811047 in words is "one billion, one hundred sixty-eight million, eight hundred eleven thousand, forty-seven".