228081583 has 2 divisors, whose sum is σ = 228081584. Its totient is φ = 228081582.

The previous prime is 228081559. The next prime is 228081599. The reversal of 228081583 is 385180822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228081583 - 2⁹ = 228081071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228081383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114040791 + 114040792.

It is an arithmetic number, because the mean of its divisors is an integer number (114040792).

Almost surely, 2^228081583 is an apocalyptic number.

228081583 is a deficient number, since it is larger than the sum of its proper divisors (1).

228081583 is an equidigital number, since it uses as much as digits as its factorization.

228081583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 37.

The square root of 228081583 is about 15102.3701120056. The cubic root of 228081583 is about 610.9843312234.

The spelling of 228081583 in words is "two hundred twenty-eight million, eighty-one thousand, five hundred eighty-three".