352222009 has 2 divisors, whose sum is σ = 352222010. Its totient is φ = 352222008.

The previous prime is 352221967. The next prime is 352222027. The reversal of 352222009 is 900222253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 346071609 + 6150400 = 18603^2 + 2480^2 .

It is a cyclic number.

It is not a de Polignac number, because 352222009 - 2⁹ = 352221497 is a prime.

It is not a weakly prime, because it can be changed into another prime (352225009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176111004 + 176111005.

It is an arithmetic number, because the mean of its divisors is an integer number (176111005).

Almost surely, 2^352222009 is an apocalyptic number.

It is an amenable number.

352222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

352222009 is an equidigital number, since it uses as much as digits as its factorization.

352222009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 352222009 is about 18767.5786664130. The cubic root of 352222009 is about 706.2180769866.

The spelling of 352222009 in words is "three hundred fifty-two million, two hundred twenty-two thousand, nine".