228143653 has 2 divisors, whose sum is σ = 228143654. Its totient is φ = 228143652.

The previous prime is 228143651. The next prime is 228143683. The reversal of 228143653 is 356341822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166332609 + 61811044 = 12897^2 + 7862^2 .

It is a cyclic number.

It is not a de Polignac number, because 228143653 - 2¹ = 228143651 is a prime.

Together with 228143651, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228143651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114071826 + 114071827.

It is an arithmetic number, because the mean of its divisors is an integer number (114071827).

Almost surely, 2^228143653 is an apocalyptic number.

It is an amenable number.

228143653 is a deficient number, since it is larger than the sum of its proper divisors (1).

228143653 is an equidigital number, since it uses as much as digits as its factorization.

228143653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 228143653 is about 15104.4249476768. The cubic root of 228143653 is about 611.0397505128.

The spelling of 228143653 in words is "two hundred twenty-eight million, one hundred forty-three thousand, six hundred fifty-three".