228194663 has 2 divisors, whose sum is σ = 228194664. Its totient is φ = 228194662.

The previous prime is 228194641. The next prime is 228194671. The reversal of 228194663 is 366491822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228194663 - 2¹⁸ = 227932519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 228194663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228194623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114097331 + 114097332.

It is an arithmetic number, because the mean of its divisors is an integer number (114097332).

Almost surely, 2^228194663 is an apocalyptic number.

228194663 is a deficient number, since it is larger than the sum of its proper divisors (1).

228194663 is an equidigital number, since it uses as much as digits as its factorization.

228194663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 41.

The square root of 228194663 is about 15106.1134313231. The cubic root of 228194663 is about 611.0852873410.

The spelling of 228194663 in words is "two hundred twenty-eight million, one hundred ninety-four thousand, six hundred sixty-three".