212316497 has 2 divisors, whose sum is σ = 212316498. Its totient is φ = 212316496.

The previous prime is 212316479. The next prime is 212316527. The reversal of 212316497 is 794613212.

212316497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (212316479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164968336 + 47348161 = 12844^2 + 6881^2 .

It is a cyclic number.

It is not a de Polignac number, because 212316497 - 2²⁰ = 211267921 is a prime.

It is not a weakly prime, because it can be changed into another prime (212616497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106158248 + 106158249.

It is an arithmetic number, because the mean of its divisors is an integer number (106158249).

Almost surely, 2^212316497 is an apocalyptic number.

It is an amenable number.

212316497 is a deficient number, since it is larger than the sum of its proper divisors (1).

212316497 is an equidigital number, since it uses as much as digits as its factorization.

212316497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 212316497 is about 14571.0842767448. The cubic root of 212316497 is about 596.5697757148.

The spelling of 212316497 in words is "two hundred twelve million, three hundred sixteen thousand, four hundred ninety-seven".