211335089 has 6 divisors (see below), whose sum is σ = 245838834. Its totient is φ = 181144320.

The previous prime is 211335079. The next prime is 211335133. The reversal of 211335089 is 980533112.

It can be written as a sum of positive squares in only one way, i.e., 164275489 + 47059600 = 12817^2 + 6860^2 .

It is not a de Polignac number, because 211335089 - 2²⁰ = 210286513 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (211335079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2156432 + ... + 2156529.

It is an arithmetic number, because the mean of its divisors is an integer number (40973139).

Almost surely, 2^211335089 is an apocalyptic number.

It is an amenable number.

211335089 is a deficient number, since it is larger than the sum of its proper divisors (34503745).

211335089 is an equidigital number, since it uses as much as digits as its factorization.

211335089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312975 (or 4312968 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 211335089 is about 14537.3687096393. The cubic root of 211335089 is about 595.6491646082.

The spelling of 211335089 in words is "two hundred eleven million, three hundred thirty-five thousand, eighty-nine".