226605857 has 2 divisors, whose sum is σ = 226605858. Its totient is φ = 226605856.

The previous prime is 226605833. The next prime is 226605931. The reversal of 226605857 is 758506622.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 219158416 + 7447441 = 14804^2 + 2729^2 .

It is a cyclic number.

It is not a de Polignac number, because 226605857 - 2⁸ = 226605601 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (226605817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113302928 + 113302929.

It is an arithmetic number, because the mean of its divisors is an integer number (113302929).

Almost surely, 2^226605857 is an apocalyptic number.

It is an amenable number.

226605857 is a deficient number, since it is larger than the sum of its proper divisors (1).

226605857 is an equidigital number, since it uses as much as digits as its factorization.

226605857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 41.

The square root of 226605857 is about 15053.4333957407. The cubic root of 226605857 is about 609.6637553860.

The spelling of 226605857 in words is "two hundred twenty-six million, six hundred five thousand, eight hundred fifty-seven".