200931089 has 2 divisors, whose sum is σ = 200931090. Its totient is φ = 200931088.

The previous prime is 200931043. The next prime is 200931103. The reversal of 200931089 is 980139002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149206225 + 51724864 = 12215^2 + 7192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200931089 is a prime.

It is not a weakly prime, because it can be changed into another prime (200931889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100465544 + 100465545.

It is an arithmetic number, because the mean of its divisors is an integer number (100465545).

Almost surely, 2^200931089 is an apocalyptic number.

It is an amenable number.

200931089 is a deficient number, since it is larger than the sum of its proper divisors (1).

200931089 is an equidigital number, since it uses as much as digits as its factorization.

200931089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 200931089 is about 14175.0163668336. The cubic root of 200931089 is about 585.7096499081.

The spelling of 200931089 in words is "two hundred million, nine hundred thirty-one thousand, eighty-nine".