1106089891 has 2 divisors, whose sum is σ = 1106089892. Its totient is φ = 1106089890.

The previous prime is 1106089871. The next prime is 1106089973. The reversal of 1106089891 is 1989806011.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1989806011) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 1686809011 and 1109086861.

It is a cyclic number.

It is not a de Polignac number, because 1106089891 - 2⁷ = 1106089763 is a prime.

It is not a weakly prime, because it can be changed into another prime (1106089811) 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 as a sum of consecutive naturals, namely, 553044945 + 553044946.

It is an arithmetic number, because the mean of its divisors is an integer number (553044946).

Almost surely, 2^1106089891 is an apocalyptic number.

1106089891 is a deficient number, since it is larger than the sum of its proper divisors (1).

1106089891 is an equidigital number, since it uses as much as digits as its factorization.

1106089891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 43.

The square root of 1106089891 is about 33257.9297461523. The cubic root of 1106089891 is about 1034.1816026509.

The spelling of 1106089891 in words is "one billion, one hundred six million, eighty-nine thousand, eight hundred ninety-one".