9853121 has 2 divisors, whose sum is σ = 9853122. Its totient is φ = 9853120.

The previous prime is 9853073. The next prime is 9853139. The reversal of 9853121 is 1213589.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5013121 + 4840000 = 2239^2 + 2200^2 .

It is a cyclic number.

It is not a de Polignac number, because 9853121 - 2¹⁰ = 9852097 is a prime.

It is not a weakly prime, because it can be changed into another prime (9853141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4926560 + 4926561.

It is an arithmetic number, because the mean of its divisors is an integer number (4926561).

Almost surely, 2^9853121 is an apocalyptic number.

It is an amenable number.

9853121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9853121 is an equidigital number, since it uses as much as digits as its factorization.

9853121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 29.

The square root of 9853121 is about 3138.9681425590. The cubic root of 9853121 is about 214.3834581176.

The spelling of 9853121 in words is "nine million, eight hundred fifty-three thousand, one hundred twenty-one".