228197071 has 2 divisors, whose sum is σ = 228197072. Its totient is φ = 228197070.

The previous prime is 228197063. The next prime is 228197083. The reversal of 228197071 is 170791822.

228197071 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 228197071 - 2³ = 228197063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228197071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228197041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114098535 + 114098536.

It is an arithmetic number, because the mean of its divisors is an integer number (114098536).

Almost surely, 2^228197071 is an apocalyptic number.

228197071 is a deficient number, since it is larger than the sum of its proper divisors (1).

228197071 is an equidigital number, since it uses as much as digits as its factorization.

228197071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 37.

The square root of 228197071 is about 15106.1931339434. The cubic root of 228197071 is about 611.0874368043.

It can be divided in two parts, 22819 and 7071, that added together give a triangular number (29890 = T₂₄₄).

The spelling of 228197071 in words is "two hundred twenty-eight million, one hundred ninety-seven thousand, seventy-one".