255149 has 2 divisors, whose sum is σ = 255150. Its totient is φ = 255148.

The previous prime is 255137. The next prime is 255173. The reversal of 255149 is 941552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243049 + 12100 = 493^2 + 110^2 .

It is a cyclic number.

It is not a de Polignac number, because 255149 - 2⁴ = 255133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127574 + 127575.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2²⁵⁵¹⁴⁹ is an apocalyptic number.

It is an amenable number.

255149 is a deficient number, since it is larger than the sum of its proper divisors (1).

255149 is an equidigital number, since it uses as much as digits as its factorization.

255149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 255149 is about 505.1227573571. The cubic root of 255149 is about 63.4256057278.

It can be divided in two parts, 255 and 149, that added together give a palindrome (404).

The spelling of 255149 in words is "two hundred fifty-five thousand, one hundred forty-nine".