214897213 has 2 divisors, whose sum is σ = 214897214. Its totient is φ = 214897212.

The previous prime is 214897183. The next prime is 214897219. The reversal of 214897213 is 312798412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 126292644 + 88604569 = 11238^2 + 9413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214897213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (214897219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107448606 + 107448607.

It is an arithmetic number, because the mean of its divisors is an integer number (107448607).

Almost surely, 2^214897213 is an apocalyptic number.

It is an amenable number.

214897213 is a deficient number, since it is larger than the sum of its proper divisors (1).

214897213 is an equidigital number, since it uses as much as digits as its factorization.

214897213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 37.

The square root of 214897213 is about 14659.3728719888. The cubic root of 214897213 is about 598.9771582413.

The spelling of 214897213 in words is "two hundred fourteen million, eight hundred ninety-seven thousand, two hundred thirteen".