212297 has 2 divisors, whose sum is σ = 212298. Its totient is φ = 212296.

The previous prime is 212293. The next prime is 212353. The reversal of 212297 is 792212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190096 + 22201 = 436^2 + 149^2 .

It is a cyclic number.

It is not a de Polignac number, because 212297 - 2² = 212293 is a prime.

It is a Chen prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (212293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106148 + 106149.

It is an arithmetic number, because the mean of its divisors is an integer number (106149).

2²¹²²⁹⁷ is an apocalyptic number.

It is an amenable number.

212297 is a deficient number, since it is larger than the sum of its proper divisors (1).

212297 is an equidigital number, since it uses as much as digits as its factorization.

212297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 212297 is about 460.7569858396. The cubic root of 212297 is about 59.6551514177.

The spelling of 212297 in words is "two hundred twelve thousand, two hundred ninety-seven".