209133 has 12 divisors (see below), whose sum is σ = 318240. Its totient is φ = 131976.

The previous prime is 209123. The next prime is 209147. The reversal of 209133 is 331902.

It is not a de Polignac number, because 209133 - 2⁸ = 208877 is a prime.

It is a super-2 number, since 2×209133² = 87473223378, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 209133.

It is not an unprimeable number, because it can be changed into a prime (209123) 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, 441 + ... + 782.

It is an arithmetic number, because the mean of its divisors is an integer number (26520).

2²⁰⁹¹³³ is an apocalyptic number.

It is an amenable number.

209133 is a deficient number, since it is larger than the sum of its proper divisors (109107).

209133 is a wasteful number, since it uses less digits than its factorization.

209133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 1245 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 209133 is about 457.3106165398. The cubic root of 209133 is about 59.3573070089.

The spelling of 209133 in words is "two hundred nine thousand, one hundred thirty-three".