255315131 has 2 divisors, whose sum is σ = 255315132. Its totient is φ = 255315130.

The previous prime is 255315097. The next prime is 255315149. The reversal of 255315131 is 131513552.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255315131 - 2¹⁰ = 255314107 is a prime.

It is a super-2 number, since 2×255315131² = 130371632235094322, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 255315131.

It is not a weakly prime, because it can be changed into another prime (255311131) 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 as a sum of consecutive naturals, namely, 127657565 + 127657566.

It is an arithmetic number, because the mean of its divisors is an integer number (127657566).

Almost surely, 2^255315131 is an apocalyptic number.

255315131 is a deficient number, since it is larger than the sum of its proper divisors (1).

255315131 is an equidigital number, since it uses as much as digits as its factorization.

255315131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2250, while the sum is 26.

The square root of 255315131 is about 15978.5835104367. The cubic root of 255315131 is about 634.3936850070.

Adding to 255315131 its reverse (131513552), we get a palindrome (386828683).

The spelling of 255315131 in words is "two hundred fifty-five million, three hundred fifteen thousand, one hundred thirty-one".