228143879 has 2 divisors, whose sum is σ = 228143880. Its totient is φ = 228143878.

The previous prime is 228143873. The next prime is 228143891. The reversal of 228143879 is 978341822.

228143879 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 228143879 - 2²⁰ = 227095303 is a prime.

It is a super-3 number, since 3×228143879³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228143873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114071939 + 114071940.

It is an arithmetic number, because the mean of its divisors is an integer number (114071940).

Almost surely, 2^228143879 is an apocalyptic number.

228143879 is a deficient number, since it is larger than the sum of its proper divisors (1).

228143879 is an equidigital number, since it uses as much as digits as its factorization.

228143879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 44.

The square root of 228143879 is about 15104.4324289263. The cubic root of 228143879 is about 611.0399522789.

The spelling of 228143879 in words is "two hundred twenty-eight million, one hundred forty-three thousand, eight hundred seventy-nine".