200118081 has 8 divisors (see below), whose sum is σ = 269575264. Its totient is φ = 132036480.

The previous prime is 200118059. The next prime is 200118109. The reversal of 200118081 is 180811002.

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

It is not a de Polignac number, because 200118081 - 2⁵ = 200118049 is a prime.

It is a super-2 number, since 2×200118081² = 80094492686245122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200118011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 343555 + ... + 344136.

It is an arithmetic number, because the mean of its divisors is an integer number (33696908).

Almost surely, 2^200118081 is an apocalyptic number.

It is an amenable number.

200118081 is a deficient number, since it is larger than the sum of its proper divisors (69457183).

200118081 is an equidigital number, since it uses as much as digits as its factorization.

200118081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687791.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 200118081 is about 14146.3098014995. The cubic root of 200118081 is about 584.9186153129.

Adding to 200118081 its reverse (180811002), we get a palindrome (380929083).

The spelling of 200118081 in words is "two hundred million, one hundred eighteen thousand, eighty-one".