110891143 has 4 divisors (see below), whose sum is σ = 120972168. Its totient is φ = 100810120.

The previous prime is 110891129. The next prime is 110891147. The reversal of 110891143 is 341198011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110891143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110891147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5040496 + ... + 5040517.

It is an arithmetic number, because the mean of its divisors is an integer number (30243042).

Almost surely, 2^110891143 is an apocalyptic number.

110891143 is a deficient number, since it is larger than the sum of its proper divisors (10081025).

110891143 is a wasteful number, since it uses less digits than its factorization.

110891143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10081024.

The product of its (nonzero) digits is 864, while the sum is 28.

The square root of 110891143 is about 10530.4863610377. The cubic root of 110891143 is about 480.4323982709.

The spelling of 110891143 in words is "one hundred ten million, eight hundred ninety-one thousand, one hundred forty-three".