212064277 has 2 divisors, whose sum is σ = 212064278. Its totient is φ = 212064276.

The previous prime is 212064271. The next prime is 212064283. The reversal of 212064277 is 772460212.

It is a balanced prime because it is at equal distance from previous prime (212064271) and next prime (212064283).

It can be written as a sum of positive squares in only one way, i.e., 119115396 + 92948881 = 10914^2 + 9641^2 .

It is a cyclic number.

It is not a de Polignac number, because 212064277 - 2¹⁵ = 212031509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212064271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106032138 + 106032139.

It is an arithmetic number, because the mean of its divisors is an integer number (106032139).

Almost surely, 2^212064277 is an apocalyptic number.

It is an amenable number.

212064277 is a deficient number, since it is larger than the sum of its proper divisors (1).

212064277 is an equidigital number, since it uses as much as digits as its factorization.

212064277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 212064277 is about 14562.4268925204. The cubic root of 212064277 is about 596.3334517168. Note that the first 3 decimals are identical.

The spelling of 212064277 in words is "two hundred twelve million, sixty-four thousand, two hundred seventy-seven".