135578563 has 2 divisors, whose sum is σ = 135578564. Its totient is φ = 135578562.

The previous prime is 135578561. The next prime is 135578579. The reversal of 135578563 is 365875531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135578563 - 2¹ = 135578561 is a prime.

Together with 135578561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (135578561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67789281 + 67789282.

It is an arithmetic number, because the mean of its divisors is an integer number (67789282).

Almost surely, 2^135578563 is an apocalyptic number.

135578563 is a deficient number, since it is larger than the sum of its proper divisors (1).

135578563 is an equidigital number, since it uses as much as digits as its factorization.

135578563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 43.

The square root of 135578563 is about 11643.8208076215. The cubic root of 135578563 is about 513.7245757532.

The spelling of 135578563 in words is "one hundred thirty-five million, five hundred seventy-eight thousand, five hundred sixty-three".