211070129 has 2 divisors, whose sum is σ = 211070130. Its totient is φ = 211070128.

The previous prime is 211070087. The next prime is 211070161. The reversal of 211070129 is 921070112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115519504 + 95550625 = 10748^2 + 9775^2 .

It is a cyclic number.

It is not a de Polignac number, because 211070129 - 2¹⁶ = 211004593 is a prime.

It is not a weakly prime, because it can be changed into another prime (211070029) 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, 105535064 + 105535065.

It is an arithmetic number, because the mean of its divisors is an integer number (105535065).

Almost surely, 2^211070129 is an apocalyptic number.

It is an amenable number.

211070129 is a deficient number, since it is larger than the sum of its proper divisors (1).

211070129 is an equidigital number, since it uses as much as digits as its factorization.

211070129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 211070129 is about 14528.2527855210. The cubic root of 211070129 is about 595.4001300757.

The spelling of 211070129 in words is "two hundred eleven million, seventy thousand, one hundred twenty-nine".