255144209 has 2 divisors, whose sum is σ = 255144210. Its totient is φ = 255144208.

The previous prime is 255144199. The next prime is 255144269. The reversal of 255144209 is 902441552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 253446400 + 1697809 = 15920^2 + 1303^2 .

It is a cyclic number.

It is not a de Polignac number, because 255144209 - 2⁸ = 255143953 is a prime.

It is equal to p_13945244 and since 255144209 and 13945244 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (255144269) 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, 127572104 + 127572105.

It is an arithmetic number, because the mean of its divisors is an integer number (127572105).

Almost surely, 2^255144209 is an apocalyptic number.

It is an amenable number.

255144209 is a deficient number, since it is larger than the sum of its proper divisors (1).

255144209 is an equidigital number, since it uses as much as digits as its factorization.

255144209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 255144209 is about 15973.2341434038. The cubic root of 255144209 is about 634.2520873890.

The spelling of 255144209 in words is "two hundred fifty-five million, one hundred forty-four thousand, two hundred nine".