228041831 has 2 divisors, whose sum is σ = 228041832. Its totient is φ = 228041830.

The previous prime is 228041813. The next prime is 228041867. The reversal of 228041831 is 138140822.

Together with previous prime (228041813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228041831 - 2¹⁸ = 227779687 is a prime.

It is a super-2 number, since 2×228041831² = 104006153371665122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 228041794 and 228041803.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228041131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114020915 + 114020916.

It is an arithmetic number, because the mean of its divisors is an integer number (114020916).

Almost surely, 2^228041831 is an apocalyptic number.

228041831 is a deficient number, since it is larger than the sum of its proper divisors (1).

228041831 is an equidigital number, since it uses as much as digits as its factorization.

228041831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 228041831 is about 15101.0539698393. The cubic root of 228041831 is about 610.9488333108.

The spelling of 228041831 in words is "two hundred twenty-eight million, forty-one thousand, eight hundred thirty-one".