226291 has 8 divisors (see below), whose sum is σ = 247520. Its totient is φ = 206856.

The previous prime is 226283. The next prime is 226307. The reversal of 226291 is 192622.

It is a happy number.

It is not a de Polignac number, because 226291 - 2³ = 226283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2146 + ... + 2248.

It is an arithmetic number, because the mean of its divisors is an integer number (30940).

2²²⁶²⁹¹ is an apocalyptic number.

226291 is a deficient number, since it is larger than the sum of its proper divisors (21229).

226291 is an equidigital number, since it uses as much as digits as its factorization.

226291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 116 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 226291 is about 475.7005360518. The cubic root of 226291 is about 60.9381259195.

The spelling of 226291 in words is "two hundred twenty-six thousand, two hundred ninety-one".