228333541 has 2 divisors, whose sum is σ = 228333542. Its totient is φ = 228333540.

The previous prime is 228333517. The next prime is 228333557. The reversal of 228333541 is 145333822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223382916 + 4950625 = 14946^2 + 2225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228333541 is a prime.

It is a super-3 number, since 3×228333541³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228333571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114166770 + 114166771.

It is an arithmetic number, because the mean of its divisors is an integer number (114166771).

Almost surely, 2^228333541 is an apocalyptic number.

It is an amenable number.

228333541 is a deficient number, since it is larger than the sum of its proper divisors (1).

228333541 is an equidigital number, since it uses as much as digits as its factorization.

228333541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 228333541 is about 15110.7094803652. The cubic root of 228333541 is about 611.2092299007.

The spelling of 228333541 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, five hundred forty-one".