135885241 has 2 divisors, whose sum is σ = 135885242. Its totient is φ = 135885240.

The previous prime is 135885229. The next prime is 135885251. The reversal of 135885241 is 142588531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 135489600 + 395641 = 11640^2 + 629^2 .

It is a cyclic number.

It is not a de Polignac number, because 135885241 - 2⁵ = 135885209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135885241.

It is not a weakly prime, because it can be changed into another prime (135885221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67942620 + 67942621.

It is an arithmetic number, because the mean of its divisors is an integer number (67942621).

Almost surely, 2^135885241 is an apocalyptic number.

It is an amenable number.

135885241 is a deficient number, since it is larger than the sum of its proper divisors (1).

135885241 is an equidigital number, since it uses as much as digits as its factorization.

135885241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38400, while the sum is 37.

The square root of 135885241 is about 11656.9824997724. The cubic root of 135885241 is about 514.1116314943. Note that the first 3 decimals are identical.

The spelling of 135885241 in words is "one hundred thirty-five million, eight hundred eighty-five thousand, two hundred forty-one".