9102889109 has 2 divisors, whose sum is σ = 9102889110. Its totient is φ = 9102889108.

The previous prime is 9102889097. The next prime is 9102889111. The reversal of 9102889109 is 9019882019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5460766609 + 3642122500 = 73897^2 + 60350^2 .

It is a cyclic number.

It is not a de Polignac number, because 9102889109 - 2⁸ = 9102888853 is a prime.

Together with 9102889111, 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 (9102819109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4551444554 + 4551444555.

It is an arithmetic number, because the mean of its divisors is an integer number (4551444555).

Almost surely, 2^9102889109 is an apocalyptic number.

It is an amenable number.

9102889109 is a deficient number, since it is larger than the sum of its proper divisors (1).

9102889109 is an equidigital number, since it uses as much as digits as its factorization.

9102889109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 47.

The square root of 9102889109 is about 95409.0619857464. The cubic root of 9102889109 is about 2087.9803990474.

The spelling of 9102889109 in words is "nine billion, one hundred two million, eight hundred eighty-nine thousand, one hundred nine".