226871861 has 2 divisors, whose sum is σ = 226871862. Its totient is φ = 226871860.

The previous prime is 226871833. The next prime is 226871873. The reversal of 226871861 is 168178622.

226871861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225930961 + 940900 = 15031^2 + 970^2 .

It is a cyclic number.

It is not a de Polignac number, because 226871861 - 2¹⁴ = 226855477 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (226871831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113435930 + 113435931.

It is an arithmetic number, because the mean of its divisors is an integer number (113435931).

Almost surely, 2^226871861 is an apocalyptic number.

It is an amenable number.

226871861 is a deficient number, since it is larger than the sum of its proper divisors (1).

226871861 is an equidigital number, since it uses as much as digits as its factorization.

226871861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 226871861 is about 15062.2661309645. The cubic root of 226871861 is about 609.9022158048.

The spelling of 226871861 in words is "two hundred twenty-six million, eight hundred seventy-one thousand, eight hundred sixty-one".