64210213 has 2 divisors, whose sum is σ = 64210214. Its totient is φ = 64210212.

The previous prime is 64210193. The next prime is 64210219. The reversal of 64210213 is 31201246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45400644 + 18809569 = 6738^2 + 4337^2 .

It is a cyclic number.

It is not a de Polignac number, because 64210213 - 2²¹ = 62113061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64210219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32105106 + 32105107.

It is an arithmetic number, because the mean of its divisors is an integer number (32105107).

Almost surely, 2^64210213 is an apocalyptic number.

It is an amenable number.

64210213 is a deficient number, since it is larger than the sum of its proper divisors (1).

64210213 is an equidigital number, since it uses as much as digits as its factorization.

64210213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 64210213 is about 8013.1275417280. The cubic root of 64210213 is about 400.4374651362.

Adding to 64210213 its reverse (31201246), we get a palindrome (95411459).

The spelling of 64210213 in words is "sixty-four million, two hundred ten thousand, two hundred thirteen".