227611231 has 2 divisors, whose sum is σ = 227611232. Its totient is φ = 227611230.

The previous prime is 227611217. The next prime is 227611247. The reversal of 227611231 is 132116722.

It is a happy number.

227611231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 227611231 - 2¹¹ = 227609183 is a prime.

It is a super-2 number, since 2×227611231² = 103613744954670722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 227611196 and 227611205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (227611031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113805615 + 113805616.

It is an arithmetic number, because the mean of its divisors is an integer number (113805616).

Almost surely, 2^227611231 is an apocalyptic number.

227611231 is a deficient number, since it is larger than the sum of its proper divisors (1).

227611231 is an equidigital number, since it uses as much as digits as its factorization.

227611231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 25.

The square root of 227611231 is about 15086.7899501518. The cubic root of 227611231 is about 610.5640496304.

Adding to 227611231 its reverse (132116722), we get a palindrome (359727953).

The spelling of 227611231 in words is "two hundred twenty-seven million, six hundred eleven thousand, two hundred thirty-one".