226661 has 8 divisors (see below), whose sum is σ = 244800. Its totient is φ = 209088.

The previous prime is 226657. The next prime is 226663. The reversal of 226661 is 166622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 226661 - 2² = 226657 is a prime.

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 226661.

It is not an unprimeable number, because it can be changed into a prime (226663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1040 + ... + 1238.

It is an arithmetic number, because the mean of its divisors is an integer number (30600).

2²²⁶⁶⁶¹ is an apocalyptic number.

It is an amenable number.

226661 is a deficient number, since it is larger than the sum of its proper divisors (18139).

226661 is a wasteful number, since it uses less digits than its factorization.

226661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283.

The product of its digits is 864, while the sum is 23.

The square root of 226661 is about 476.0892773420. The cubic root of 226661 is about 60.9713203890.

The spelling of 226661 in words is "two hundred twenty-six thousand, six hundred sixty-one".