9090919273 has 2 divisors, whose sum is σ = 9090919274. Its totient is φ = 9090919272.

The previous prime is 9090919247. The next prime is 9090919297. The reversal of 9090919273 is 3729190909.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6634428304 + 2456490969 = 81452^2 + 49563^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9090919273 is a prime.

It is not a weakly prime, because it can be changed into another prime (9090910273) 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, 4545459636 + 4545459637.

It is an arithmetic number, because the mean of its divisors is an integer number (4545459637).

Almost surely, 2^9090919273 is an apocalyptic number.

It is an amenable number.

9090919273 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090919273 is an equidigital number, since it uses as much as digits as its factorization.

9090919273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 275562, while the sum is 49.

The square root of 9090919273 is about 95346.3123198795. The cubic root of 9090919273 is about 2087.0648016144.

The spelling of 9090919273 in words is "nine billion, ninety million, nine hundred nineteen thousand, two hundred seventy-three".