226931 has 4 divisors (see below), whose sum is σ = 228072. Its totient is φ = 225792.

The previous prime is 226913. The next prime is 226937. The reversal of 226931 is 139622.

226931 is nontrivially palindromic in base 16.

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 a de Polignac number, because none of the positive numbers 2^k-226931 is a prime.

It is a super-2 number, since 2×226931² = 102995357522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 226897 and 226906.

It is not an unprimeable number, because it can be changed into a prime (226937) 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, 185 + ... + 698.

It is an arithmetic number, because the mean of its divisors is an integer number (57018).

2²²⁶⁹³¹ is an apocalyptic number.

226931 is a deficient number, since it is larger than the sum of its proper divisors (1141).

226931 is an equidigital number, since it uses as much as digits as its factorization.

226931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1140.

The product of its digits is 648, while the sum is 23.

The square root of 226931 is about 476.3727532091. The cubic root of 226931 is about 60.9955205884.

The spelling of 226931 in words is "two hundred twenty-six thousand, nine hundred thirty-one".