9106196621 has 2 divisors, whose sum is σ = 9106196622. Its totient is φ = 9106196620.

The previous prime is 9106196579. The next prime is 9106196629. The reversal of 9106196621 is 1266916019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5706140521 + 3400056100 = 75539^2 + 58310^2 .

It is an emirp because it is prime and its reverse (1266916019) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9106196621 - 2¹⁸ = 9105934477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9106196629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4553098310 + 4553098311.

It is an arithmetic number, because the mean of its divisors is an integer number (4553098311).

Almost surely, 2^9106196621 is an apocalyptic number.

It is an amenable number.

9106196621 is a deficient number, since it is larger than the sum of its proper divisors (1).

9106196621 is an equidigital number, since it uses as much as digits as its factorization.

9106196621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 9106196621 is about 95426.3937335997. The cubic root of 9106196621 is about 2088.2332559109.

The spelling of 9106196621 in words is "nine billion, one hundred six million, one hundred ninety-six thousand, six hundred twenty-one".