255135437 has 2 divisors, whose sum is σ = 255135438. Its totient is φ = 255135436.

The previous prime is 255135421. The next prime is 255135467. The reversal of 255135437 is 734531552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 213481321 + 41654116 = 14611^2 + 6454^2 .

It is a cyclic number.

It is not a de Polignac number, because 255135437 - 2⁴ = 255135421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 255135397 and 255135406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255135407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127567718 + 127567719.

It is an arithmetic number, because the mean of its divisors is an integer number (127567719).

Almost surely, 2^255135437 is an apocalyptic number.

It is an amenable number.

255135437 is a deficient number, since it is larger than the sum of its proper divisors (1).

255135437 is an equidigital number, since it uses as much as digits as its factorization.

255135437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63000, while the sum is 35.

The square root of 255135437 is about 15972.9595567008. The cubic root of 255135437 is about 634.2448186590.

Adding to 255135437 its reverse (734531552), we get a palindrome (989666989).

The spelling of 255135437 in words is "two hundred fifty-five million, one hundred thirty-five thousand, four hundred thirty-seven".