9071123161 has 2 divisors, whose sum is σ = 9071123162. Its totient is φ = 9071123160.

The previous prime is 9071123107. The next prime is 9071123189. The reversal of 9071123161 is 1613211709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8930250000 + 140873161 = 94500^2 + 11869^2 .

It is an emirp because it is prime and its reverse (1613211709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9071123161 - 2³³ = 481188569 is a prime.

It is not a weakly prime, because it can be changed into another prime (9071123261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4535561580 + 4535561581.

It is an arithmetic number, because the mean of its divisors is an integer number (4535561581).

Almost surely, 2^9071123161 is an apocalyptic number.

It is an amenable number.

9071123161 is a deficient number, since it is larger than the sum of its proper divisors (1).

9071123161 is an equidigital number, since it uses as much as digits as its factorization.

9071123161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 9071123161 is about 95242.4441150058. Note that the first 3 decimals coincide. The cubic root of 9071123161 is about 2085.5487908576.

The spelling of 9071123161 in words is "nine billion, seventy-one million, one hundred twenty-three thousand, one hundred sixty-one".