226811831 has 2 divisors, whose sum is σ = 226811832. Its totient is φ = 226811830.

The previous prime is 226811791. The next prime is 226811833. The reversal of 226811831 is 138118622.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 226811831 - 2¹⁴ = 226795447 is a prime.

It is a super-2 number, since 2×226811831² = 102887213363145122, which contains 22 as substring.

Together with 226811833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226811833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113405915 + 113405916.

It is an arithmetic number, because the mean of its divisors is an integer number (113405916).

Almost surely, 2^226811831 is an apocalyptic number.

226811831 is a deficient number, since it is larger than the sum of its proper divisors (1).

226811831 is an equidigital number, since it uses as much as digits as its factorization.

226811831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 32.

The square root of 226811831 is about 15060.2732710931. The cubic root of 226811831 is about 609.8484179480.

The spelling of 226811831 in words is "two hundred twenty-six million, eight hundred eleven thousand, eight hundred thirty-one".