211534249 has 2 divisors, whose sum is σ = 211534250. Its totient is φ = 211534248.

The previous prime is 211534241. The next prime is 211534259. The reversal of 211534249 is 942435112.

211534249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201498025 + 10036224 = 14195^2 + 3168^2 .

It is a cyclic number.

It is not a de Polignac number, because 211534249 - 2³ = 211534241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211534249.

It is not a weakly prime, because it can be changed into another prime (211534241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105767124 + 105767125.

It is an arithmetic number, because the mean of its divisors is an integer number (105767125).

Almost surely, 2^211534249 is an apocalyptic number.

It is an amenable number.

211534249 is a deficient number, since it is larger than the sum of its proper divisors (1).

211534249 is an equidigital number, since it uses as much as digits as its factorization.

211534249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 31.

The square root of 211534249 is about 14544.2170294588. The cubic root of 211534249 is about 595.8362170638.

The spelling of 211534249 in words is "two hundred eleven million, five hundred thirty-four thousand, two hundred forty-nine".