9105363221 has 2 divisors, whose sum is σ = 9105363222. Its totient is φ = 9105363220.

The previous prime is 9105363187. The next prime is 9105363227. The reversal of 9105363221 is 1223635019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7963599121 + 1141764100 = 89239^2 + 33790^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9105363221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9105363227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4552681610 + 4552681611.

It is an arithmetic number, because the mean of its divisors is an integer number (4552681611).

Almost surely, 2^9105363221 is an apocalyptic number.

It is an amenable number.

9105363221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9105363221 is an equidigital number, since it uses as much as digits as its factorization.

9105363221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 9105363221 is about 95422.0269172689. The cubic root of 9105363221 is about 2088.1695488638.

The spelling of 9105363221 in words is "nine billion, one hundred five million, three hundred sixty-three thousand, two hundred twenty-one".