200109389 has 2 divisors, whose sum is σ = 200109390. Its totient is φ = 200109388.

The previous prime is 200109359. The next prime is 200109391. The reversal of 200109389 is 983901002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186786889 + 13322500 = 13667^2 + 3650^2 .

It is a cyclic number.

It is not a de Polignac number, because 200109389 - 2¹⁶ = 200043853 is a prime.

Together with 200109391, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200109359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100054694 + 100054695.

It is an arithmetic number, because the mean of its divisors is an integer number (100054695).

Almost surely, 2^200109389 is an apocalyptic number.

It is an amenable number.

200109389 is a deficient number, since it is larger than the sum of its proper divisors (1).

200109389 is an equidigital number, since it uses as much as digits as its factorization.

200109389 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 200109389 is about 14146.0025802345. The cubic root of 200109389 is about 584.9101466691.

The spelling of 200109389 in words is "two hundred million, one hundred nine thousand, three hundred eighty-nine".