228143663 has 16 divisors (see below), whose sum is σ = 257541120. Its totient is φ = 200222400.

The previous prime is 228143653. The next prime is 228143683. The reversal of 228143663 is 366341822.

It is a cyclic number.

It is not a de Polignac number, because 228143663 - 2⁸ = 228143407 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228143603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 275456 + ... + 276282.

It is an arithmetic number, because the mean of its divisors is an integer number (16096320).

Almost surely, 2^228143663 is an apocalyptic number.

228143663 is a deficient number, since it is larger than the sum of its proper divisors (29397457).

228143663 is a wasteful number, since it uses less digits than its factorization.

228143663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678.

The product of its digits is 41472, while the sum is 35.

The square root of 228143663 is about 15104.4252787056. The cubic root of 228143663 is about 611.0397594405.

The spelling of 228143663 in words is "two hundred twenty-eight million, one hundred forty-three thousand, six hundred sixty-three".