212318297 has 2 divisors, whose sum is σ = 212318298. Its totient is φ = 212318296.

The previous prime is 212318291. The next prime is 212318303. The reversal of 212318297 is 792813212.

It is a balanced prime because it is at equal distance from previous prime (212318291) and next prime (212318303).

It can be written as a sum of positive squares in only one way, i.e., 169494361 + 42823936 = 13019^2 + 6544^2 .

It is a cyclic number.

It is not a de Polignac number, because 212318297 - 2²⁶ = 145209433 is a prime.

It is not a weakly prime, because it can be changed into another prime (212318291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106159148 + 106159149.

It is an arithmetic number, because the mean of its divisors is an integer number (106159149).

Almost surely, 2^212318297 is an apocalyptic number.

It is an amenable number.

212318297 is a deficient number, since it is larger than the sum of its proper divisors (1).

212318297 is an equidigital number, since it uses as much as digits as its factorization.

212318297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 212318297 is about 14571.1460427792. The cubic root of 212318297 is about 596.5714615982.

The spelling of 212318297 in words is "two hundred twelve million, three hundred eighteen thousand, two hundred ninety-seven".