228157859 has 2 divisors, whose sum is σ = 228157860. Its totient is φ = 228157858.

The previous prime is 228157849. The next prime is 228157879. The reversal of 228157859 is 958751822.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 228157859 - 2⁴ = 228157843 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (228157849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114078929 + 114078930.

It is an arithmetic number, because the mean of its divisors is an integer number (114078930).

Almost surely, 2^228157859 is an apocalyptic number.

228157859 is a deficient number, since it is larger than the sum of its proper divisors (1).

228157859 is an equidigital number, since it uses as much as digits as its factorization.

228157859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 47.

The square root of 228157859 is about 15104.8951999013. The cubic root of 228157859 is about 611.0524329469.

The spelling of 228157859 in words is "two hundred twenty-eight million, one hundred fifty-seven thousand, eight hundred fifty-nine".