9420552191 has 2 divisors, whose sum is σ = 9420552192. Its totient is φ = 9420552190.

The previous prime is 9420552181. The next prime is 9420552199. The reversal of 9420552191 is 1912550249.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9420552191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9420552199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4710276095 + 4710276096.

It is an arithmetic number, because the mean of its divisors is an integer number (4710276096).

Almost surely, 2^9420552191 is an apocalyptic number.

9420552191 is a deficient number, since it is larger than the sum of its proper divisors (1).

9420552191 is an equidigital number, since it uses as much as digits as its factorization.

9420552191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 38.

The square root of 9420552191 is about 97059.5291097170. The cubic root of 9420552191 is about 2111.9912762896.

The spelling of 9420552191 in words is "nine billion, four hundred twenty million, five hundred fifty-two thousand, one hundred ninety-one".