135221063 has 2 divisors, whose sum is σ = 135221064. Its totient is φ = 135221062.

The previous prime is 135221033. The next prime is 135221083. The reversal of 135221063 is 360122531.

135221063 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (360122531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 135221063 - 2¹⁴ = 135204679 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135221033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67610531 + 67610532.

It is an arithmetic number, because the mean of its divisors is an integer number (67610532).

Almost surely, 2^135221063 is an apocalyptic number.

135221063 is a deficient number, since it is larger than the sum of its proper divisors (1).

135221063 is an equidigital number, since it uses as much as digits as its factorization.

135221063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 135221063 is about 11628.4591842600. The cubic root of 135221063 is about 513.2726404978.

Adding to 135221063 its reverse (360122531), we get a palindrome (495343594).

The spelling of 135221063 in words is "one hundred thirty-five million, two hundred twenty-one thousand, sixty-three".