255135213 has 6 divisors (see below), whose sum is σ = 368528654. Its totient is φ = 170090136.

The previous prime is 255135203. The next prime is 255135217. The reversal of 255135213 is 312531552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 219099204 + 36036009 = 14802^2 + 6003^2 .

It is not a de Polignac number, because 255135213 - 2¹² = 255131117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255135217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14174170 + ... + 14174187.

Almost surely, 2^255135213 is an apocalyptic number.

It is an amenable number.

255135213 is a deficient number, since it is larger than the sum of its proper divisors (113393441).

255135213 is a wasteful number, since it uses less digits than its factorization.

255135213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28348363 (or 28348360 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 255135213 is about 15972.9525448491. The cubic root of 255135213 is about 634.2446330440.

Adding to 255135213 its reverse (312531552), we get a palindrome (567666765).

The spelling of 255135213 in words is "two hundred fifty-five million, one hundred thirty-five thousand, two hundred thirteen".