68150213 has 2 divisors, whose sum is σ = 68150214. Its totient is φ = 68150212.

The previous prime is 68150197. The next prime is 68150233. The reversal of 68150213 is 31205186.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54140164 + 14010049 = 7358^2 + 3743^2 .

It is a cyclic number.

It is not a de Polignac number, because 68150213 - 2⁴ = 68150197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68150233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34075106 + 34075107.

It is an arithmetic number, because the mean of its divisors is an integer number (34075107).

Almost surely, 2^68150213 is an apocalyptic number.

It is an amenable number.

68150213 is a deficient number, since it is larger than the sum of its proper divisors (1).

68150213 is an equidigital number, since it uses as much as digits as its factorization.

68150213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 68150213 is about 8255.3142278171. The cubic root of 68150213 is about 408.4658370295.

Adding to 68150213 its reverse (31205186), we get a palindrome (99355399).

The spelling of 68150213 in words is "sixty-eight million, one hundred fifty thousand, two hundred thirteen".