9090229 has 2 divisors, whose sum is σ = 9090230. Its totient is φ = 9090228.

The previous prime is 9090217. The next prime is 9090241. The reversal of 9090229 is 9220909.

9090229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (9090217) and next prime (9090241).

It can be written as a sum of positive squares in only one way, i.e., 9090225 + 4 = 3015^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 9090229 - 2¹¹ = 9088181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9090229.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9090259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545114 + 4545115.

It is an arithmetic number, because the mean of its divisors is an integer number (4545115).

Almost surely, 2^9090229 is an apocalyptic number.

It is an amenable number.

9090229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090229 is an equidigital number, since it uses as much as digits as its factorization.

9090229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 9090229 is about 3015.0006633498. Note that the first 3 decimals coincide. The cubic root of 9090229 is about 208.7011976706.

The spelling of 9090229 in words is "nine million, ninety thousand, two hundred twenty-nine".