116186891 has 8 divisors (see below), whose sum is σ = 124291440. Its totient is φ = 108223488.

The previous prime is 116186887. The next prime is 116186893. The reversal of 116186891 is 198681611.

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

It is a cyclic number.

It is not a de Polignac number, because 116186891 - 2² = 116186887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116186893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33581 + ... + 36878.

It is an arithmetic number, because the mean of its divisors is an integer number (15536430).

Almost surely, 2^116186891 is an apocalyptic number.

116186891 is a deficient number, since it is larger than the sum of its proper divisors (8104549).

116186891 is an equidigital number, since it uses as much as digits as its factorization.

116186891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70573.

The product of its digits is 20736, while the sum is 41.

The square root of 116186891 is about 10779.0023193244. The cubic root of 116186891 is about 487.9616714387.

The spelling of 116186891 in words is "one hundred sixteen million, one hundred eighty-six thousand, eight hundred ninety-one".