255305123 has 2 divisors, whose sum is σ = 255305124. Its totient is φ = 255305122.

The previous prime is 255305111. The next prime is 255305131. The reversal of 255305123 is 321503552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255305123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255305092 and 255305101.

It is not a weakly prime, because it can be changed into another prime (255305153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127652561 + 127652562.

It is an arithmetic number, because the mean of its divisors is an integer number (127652562).

Almost surely, 2^255305123 is an apocalyptic number.

255305123 is a deficient number, since it is larger than the sum of its proper divisors (1).

255305123 is an equidigital number, since it uses as much as digits as its factorization.

255305123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 255305123 is about 15978.2703381812. The cubic root of 255305123 is about 634.3853957804.

Adding to 255305123 its reverse (321503552), we get a palindrome (576808675).

The spelling of 255305123 in words is "two hundred fifty-five million, three hundred five thousand, one hundred twenty-three".