213290209 has 12 divisors (see below), whose sum is σ = 235112080. Its totient is φ = 193347000.

The previous prime is 213290197. The next prime is 213290213. The reversal of 213290209 is 902092312.

213290209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213290209 - 2⁷ = 213290081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213290239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43534 + ... + 48184.

Almost surely, 2^213290209 is an apocalyptic number.

It is an amenable number.

213290209 is a deficient number, since it is larger than the sum of its proper divisors (21821871).

213290209 is a wasteful number, since it uses less digits than its factorization.

213290209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052 (or 5041 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 213290209 is about 14604.4585315581. The cubic root of 213290209 is about 597.4803681627.

The spelling of 213290209 in words is "two hundred thirteen million, two hundred ninety thousand, two hundred nine".