255135137 has 2 divisors, whose sum is σ = 255135138. Its totient is φ = 255135136.

The previous prime is 255135121. The next prime is 255135157. The reversal of 255135137 is 731531552.

255135137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141158161 + 113976976 = 11881^2 + 10676^2 .

It is a cyclic number.

It is not a de Polignac number, because 255135137 - 2⁴ = 255135121 is a prime.

It is not a weakly prime, because it can be changed into another prime (255135157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127567568 + 127567569.

It is an arithmetic number, because the mean of its divisors is an integer number (127567569).

Almost surely, 2^255135137 is an apocalyptic number.

It is an amenable number.

255135137 is a deficient number, since it is larger than the sum of its proper divisors (1).

255135137 is an equidigital number, since it uses as much as digits as its factorization.

255135137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15750, while the sum is 32.

The square root of 255135137 is about 15972.9501658272. The cubic root of 255135137 is about 634.2445700675.

Adding to 255135137 its reverse (731531552), we get a palindrome (986666689).

The spelling of 255135137 in words is "two hundred fifty-five million, one hundred thirty-five thousand, one hundred thirty-seven".