228143207 has 2 divisors, whose sum is σ = 228143208. Its totient is φ = 228143206.

The previous prime is 228143191. The next prime is 228143239. The reversal of 228143207 is 702341822.

228143207 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 228143207 - 2⁴ = 228143191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228143207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228143257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114071603 + 114071604.

It is an arithmetic number, because the mean of its divisors is an integer number (114071604).

Almost surely, 2^228143207 is an apocalyptic number.

228143207 is a deficient number, since it is larger than the sum of its proper divisors (1).

228143207 is an equidigital number, since it uses as much as digits as its factorization.

228143207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 228143207 is about 15104.4101837841. The cubic root of 228143207 is about 611.0393523369.

The spelling of 228143207 in words is "two hundred twenty-eight million, one hundred forty-three thousand, two hundred seven".