211065461 has 2 divisors, whose sum is σ = 211065462. Its totient is φ = 211065460.

The previous prime is 211065443. The next prime is 211065469. The reversal of 211065461 is 164560112.

211065461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186868900 + 24196561 = 13670^2 + 4919^2 .

It is a cyclic number.

It is not a de Polignac number, because 211065461 - 2⁶ = 211065397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211065461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211065469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105532730 + 105532731.

It is an arithmetic number, because the mean of its divisors is an integer number (105532731).

Almost surely, 2^211065461 is an apocalyptic number.

It is an amenable number.

211065461 is a deficient number, since it is larger than the sum of its proper divisors (1).

211065461 is an equidigital number, since it uses as much as digits as its factorization.

211065461 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 211065461 is about 14528.0921321418. The cubic root of 211065461 is about 595.3957407790.

The spelling of 211065461 in words is "two hundred eleven million, sixty-five thousand, four hundred sixty-one".