202289 has 2 divisors, whose sum is σ = 202290. Its totient is φ = 202288.

The previous prime is 202277. The next prime is 202291. The reversal of 202289 is 982202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134689 + 67600 = 367^2 + 260^2 .

It is a cyclic number.

It is not a de Polignac number, because 202289 - 2¹² = 198193 is a prime.

Together with 202291, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (202219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101144 + 101145.

It is an arithmetic number, because the mean of its divisors is an integer number (101145).

2²⁰²²⁸⁹ is an apocalyptic number.

It is an amenable number.

202289 is a deficient number, since it is larger than the sum of its proper divisors (1).

202289 is an equidigital number, since it uses as much as digits as its factorization.

202289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 202289 is about 449.7654944524. The cubic root of 202289 is about 58.7026115523.

The spelling of 202289 in words is "two hundred two thousand, two hundred eighty-nine".