1168081 has 4 divisors (see below), whose sum is σ = 1178532. Its totient is φ = 1157632.

The previous prime is 1168043. The next prime is 1168093. The reversal of 1168081 is 1808611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1808611 = 7 ⋅258373.

It can be written as a sum of positive squares in 2 ways, for example, as 33856 + 1134225 = 184^2 + 1065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1168081 - 2⁷ = 1167953 is a prime.

It is a super-2 number, since 2×1168081² = 2728826445122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5056 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (294633).

2^1168081 is an apocalyptic number.

It is an amenable number.

1168081 is a deficient number, since it is larger than the sum of its proper divisors (10451).

1168081 is a wasteful number, since it uses less digits than its factorization.

1168081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10450.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1168081 is about 1080.7779605451. Note that the first 3 decimals coincide. The cubic root of 1168081 is about 105.3151829628.

The spelling of 1168081 in words is "one million, one hundred sixty-eight thousand, eighty-one".