228417533 has 2 divisors, whose sum is σ = 228417534. Its totient is φ = 228417532.

The previous prime is 228417493. The next prime is 228417547. The reversal of 228417533 is 335714822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170093764 + 58323769 = 13042^2 + 7637^2 .

It is a cyclic number.

It is not a de Polignac number, because 228417533 - 2¹⁰ = 228416509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228417493 and 228417502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228417433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114208766 + 114208767.

It is an arithmetic number, because the mean of its divisors is an integer number (114208767).

Almost surely, 2^228417533 is an apocalyptic number.

It is an amenable number.

228417533 is a deficient number, since it is larger than the sum of its proper divisors (1).

228417533 is an equidigital number, since it uses as much as digits as its factorization.

228417533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40320, while the sum is 35.

The square root of 228417533 is about 15113.4884457560. The cubic root of 228417533 is about 611.2841647118.

The spelling of 228417533 in words is "two hundred twenty-eight million, four hundred seventeen thousand, five hundred thirty-three".