297216001 has 2 divisors, whose sum is σ = 297216002. Its totient is φ = 297216000.

The previous prime is 297215927. The next prime is 297216053. The reversal of 297216001 is 100612792.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284428225 + 12787776 = 16865^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 297216001 - 2⁹ = 297215489 is a prime.

It is not a weakly prime, because it can be changed into another prime (297216061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148608000 + 148608001.

It is an arithmetic number, because the mean of its divisors is an integer number (148608001).

Almost surely, 2^297216001 is an apocalyptic number.

It is an amenable number.

297216001 is a deficient number, since it is larger than the sum of its proper divisors (1).

297216001 is an equidigital number, since it uses as much as digits as its factorization.

297216001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 297216001 is about 17239.9536252277. The cubic root of 297216001 is about 667.3557327310.

Adding to 297216001 its reverse (100612792), we get a palindrome (397828793).

The spelling of 297216001 in words is "two hundred ninety-seven million, two hundred sixteen thousand, one".