255131443 has 8 divisors (see below), whose sum is σ = 293875712. Its totient is φ = 216961416.

The previous prime is 255131417. The next prime is 255131467. The reversal of 255131443 is 344131552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255131443 - 2¹⁷ = 255000371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255131413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142605 + ... + 144382.

It is an arithmetic number, because the mean of its divisors is an integer number (36734464).

Almost surely, 2^255131443 is an apocalyptic number.

255131443 is a deficient number, since it is larger than the sum of its proper divisors (38744269).

255131443 is a wasteful number, since it uses less digits than its factorization.

255131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287121.

The product of its digits is 7200, while the sum is 28.

The square root of 255131443 is about 15972.8345324178. The cubic root of 255131443 is about 634.2415090612.

Adding to 255131443 its reverse (344131552), we get a palindrome (599262995).

The spelling of 255131443 in words is "two hundred fifty-five million, one hundred thirty-one thousand, four hundred forty-three".