211424089 has 2 divisors, whose sum is σ = 211424090. Its totient is φ = 211424088.

The previous prime is 211424063. The next prime is 211424093. The reversal of 211424089 is 980424112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 139428864 + 71995225 = 11808^2 + 8485^2 .

It is a cyclic number.

It is not a de Polignac number, because 211424089 - 2²⁷ = 77206361 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211424089.

It is not a weakly prime, because it can be changed into another prime (211424029) 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, 105712044 + 105712045.

It is an arithmetic number, because the mean of its divisors is an integer number (105712045).

Almost surely, 2^211424089 is an apocalyptic number.

It is an amenable number.

211424089 is a deficient number, since it is larger than the sum of its proper divisors (1).

211424089 is an equidigital number, since it uses as much as digits as its factorization.

211424089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 211424089 is about 14540.4294640839. The cubic root of 211424089 is about 595.7327685439.

The spelling of 211424089 in words is "two hundred eleven million, four hundred twenty-four thousand, eighty-nine".