225843 has 8 divisors (see below), whose sum is σ = 305088. Its totient is φ = 148584.

The previous prime is 225839. The next prime is 225859. The reversal of 225843 is 348522.

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

It is not a de Polignac number, because 225843 - 2² = 225839 is a prime.

225843 is a lucky number.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 225843.

It is not an unprimeable number, because it can be changed into a prime (225143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205 + ... + 702.

It is an arithmetic number, because the mean of its divisors is an integer number (38136).

2²²⁵⁸⁴³ is an apocalyptic number.

225843 is a deficient number, since it is larger than the sum of its proper divisors (79245).

225843 is an equidigital number, since it uses as much as digits as its factorization.

225843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993.

The product of its digits is 1920, while the sum is 24.

The square root of 225843 is about 475.2294182813. The cubic root of 225843 is about 60.8978852321.

The spelling of 225843 in words is "two hundred twenty-five thousand, eight hundred forty-three".