297213013 has 2 divisors, whose sum is σ = 297213014. Its totient is φ = 297213012.

The previous prime is 297213011. The next prime is 297213079. The reversal of 297213013 is 310312792.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 257987844 + 39225169 = 16062^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 297213013 - 2¹ = 297213011 is a prime.

Together with 297213011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (297213011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 148606506 + 148606507.

It is an arithmetic number, because the mean of its divisors is an integer number (148606507).

Almost surely, 2^297213013 is an apocalyptic number.

It is an amenable number.

297213013 is a deficient number, since it is larger than the sum of its proper divisors (1).

297213013 is an equidigital number, since it uses as much as digits as its factorization.

297213013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 297213013 is about 17239.8669658440. The cubic root of 297213013 is about 667.3534963489.

The spelling of 297213013 in words is "two hundred ninety-seven million, two hundred thirteen thousand, thirteen".