200110091 has 4 divisors (see below), whose sum is σ = 200138400. Its totient is φ = 200081784.

The previous prime is 200110087. The next prime is 200110103. The reversal of 200110091 is 190011002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 200110091 - 2² = 200110087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200110291) 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, 6365 + ... + 20993.

It is an arithmetic number, because the mean of its divisors is an integer number (50034600).

Almost surely, 2^200110091 is an apocalyptic number.

200110091 is a deficient number, since it is larger than the sum of its proper divisors (28309).

200110091 is a wasteful number, since it uses less digits than its factorization.

200110091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28308.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 200110091 is about 14146.0273928761. The cubic root of 200110091 is about 584.9108306391.

Adding to 200110091 its reverse (190011002), we get a palindrome (390121093).

The spelling of 200110091 in words is "two hundred million, one hundred ten thousand, ninety-one".