255313143 has 12 divisors (see below), whose sum is σ = 372930480. Its totient is φ = 168295776.

The previous prime is 255313141. The next prime is 255313147. The reversal of 255313143 is 341313552.

It is not a de Polignac number, because 255313143 - 2¹ = 255313141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255313141) 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 11 ways as a sum of consecutive naturals, for example, 158571 + ... + 160172.

It is an arithmetic number, because the mean of its divisors is an integer number (31077540).

Almost surely, 2^255313143 is an apocalyptic number.

255313143 is a deficient number, since it is larger than the sum of its proper divisors (117617337).

255313143 is a wasteful number, since it uses less digits than its factorization.

255313143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318838 (or 318835 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 255313143 is about 15978.5213020479. The cubic root of 255313143 is about 634.3920384433.

Adding to 255313143 its reverse (341313552), we get a palindrome (596626695).

The spelling of 255313143 in words is "two hundred fifty-five million, three hundred thirteen thousand, one hundred forty-three".