226591 has 4 divisors (see below), whose sum is σ = 227592. Its totient is φ = 225592.

The previous prime is 226571. The next prime is 226601. The reversal of 226591 is 195622.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 226591 - 2⁷ = 226463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (56898).

2²²⁶⁵⁹¹ is an apocalyptic number.

226591 is a deficient number, since it is larger than the sum of its proper divisors (1001).

226591 is an equidigital number, since it uses as much as digits as its factorization.

226591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000.

The product of its digits is 1080, while the sum is 25.

The square root of 226591 is about 476.0157560418. The cubic root of 226591 is about 60.9650431264.

The spelling of 226591 in words is "two hundred twenty-six thousand, five hundred ninety-one".