297222229 has 2 divisors, whose sum is σ = 297222230. Its totient is φ = 297222228.

The previous prime is 297222217. The next prime is 297222257. The reversal of 297222229 is 922222792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244078129 + 53144100 = 15623^2 + 7290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-297222229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297222269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148611114 + 148611115.

It is an arithmetic number, because the mean of its divisors is an integer number (148611115).

Almost surely, 2^297222229 is an apocalyptic number.

It is an amenable number.

297222229 is a deficient number, since it is larger than the sum of its proper divisors (1).

297222229 is an equidigital number, since it uses as much as digits as its factorization.

297222229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 297222229 is about 17240.1342512174. The cubic root of 297222229 is about 667.3603940575.

The spelling of 297222229 in words is "two hundred ninety-seven million, two hundred twenty-two thousand, two hundred twenty-nine".