202291 has 2 divisors, whose sum is σ = 202292. Its totient is φ = 202290.

The previous prime is 202289. The next prime is 202309. The reversal of 202291 is 192202.

It is a happy number.

202291 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 is a cyclic number.

It is not a de Polignac number, because 202291 - 2¹ = 202289 is a prime.

Together with 202289, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (202201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101145 + 101146.

It is an arithmetic number, because the mean of its divisors is an integer number (101146).

2²⁰²²⁹¹ is an apocalyptic number.

202291 is a deficient number, since it is larger than the sum of its proper divisors (1).

202291 is an equidigital number, since it uses as much as digits as its factorization.

202291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 202291 is about 449.7677178278. The cubic root of 202291 is about 58.7028050129.

Adding to 202291 its reverse (192202), we get a palindrome (394493).

The spelling of 202291 in words is "two hundred two thousand, two hundred ninety-one".