1168866131 has 4 divisors (see below), whose sum is σ = 1169368200. Its totient is φ = 1168364064.

The previous prime is 1168866107. The next prime is 1168866137. The reversal of 1168866131 is 1316688611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1316688611 = 7 ⋅188098373.

It is a cyclic number.

It is not a de Polignac number, because 1168866131 - 2³⁰ = 95124307 is a prime.

It is a super-2 number, since 2×1168866131² = 2732496064397818322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1168866137) 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, 247526 + ... + 252203.

It is an arithmetic number, because the mean of its divisors is an integer number (292342050).

Almost surely, 2^1168866131 is an apocalyptic number.

1168866131 is a deficient number, since it is larger than the sum of its proper divisors (502069).

1168866131 is an equidigital number, since it uses as much as digits as its factorization.

1168866131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502068.

The product of its digits is 41472, while the sum is 41.

The square root of 1168866131 is about 34188.6842537118. The cubic root of 1168866131 is about 1053.3877370577.

The spelling of 1168866131 in words is "one billion, one hundred sixty-eight million, eight hundred sixty-six thousand, one hundred thirty-one".