9128909201 has 2 divisors, whose sum is σ = 9128909202. Its totient is φ = 9128909200.

The previous prime is 9128909197. The next prime is 9128909267. The reversal of 9128909201 is 1029098219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8949349201 + 179560000 = 94601^2 + 13400^2 .

It is an emirp because it is prime and its reverse (1029098219) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9128909201 - 2² = 9128909197 is a prime.

It is not a weakly prime, because it can be changed into another prime (9128909281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4564454600 + 4564454601.

It is an arithmetic number, because the mean of its divisors is an integer number (4564454601).

Almost surely, 2^9128909201 is an apocalyptic number.

It is an amenable number.

9128909201 is a deficient number, since it is larger than the sum of its proper divisors (1).

9128909201 is an equidigital number, since it uses as much as digits as its factorization.

9128909201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 9128909201 is about 95545.3253749235. The cubic root of 9128909201 is about 2089.9679642991.

The spelling of 9128909201 in words is "nine billion, one hundred twenty-eight million, nine hundred nine thousand, two hundred one".