9123632209 has 2 divisors, whose sum is σ = 9123632210. Its totient is φ = 9123632208.

The previous prime is 9123632197. The next prime is 9123632239. The reversal of 9123632209 is 9022363219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6174816400 + 2948815809 = 78580^2 + 54303^2 .

It is an emirp because it is prime and its reverse (9022363219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9123632209 - 2¹⁷ = 9123501137 is a prime.

It is not a weakly prime, because it can be changed into another prime (9123632239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4561816104 + 4561816105.

It is an arithmetic number, because the mean of its divisors is an integer number (4561816105).

Almost surely, 2^9123632209 is an apocalyptic number.

It is an amenable number.

9123632209 is a deficient number, since it is larger than the sum of its proper divisors (1).

9123632209 is an equidigital number, since it uses as much as digits as its factorization.

9123632209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 9123632209 is about 95517.7062591015. The cubic root of 9123632209 is about 2089.5651826986.

The spelling of 9123632209 in words is "nine billion, one hundred twenty-three million, six hundred thirty-two thousand, two hundred nine".