135440563 has 2 divisors, whose sum is σ = 135440564. Its totient is φ = 135440562.

The previous prime is 135440561. The next prime is 135440573. The reversal of 135440563 is 365044531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135440563 - 2¹ = 135440561 is a prime.

It is a super-2 number, since 2×135440563² = 36688292211513938, which contains 22 as substring.

Together with 135440561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (135440561) 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, 67720281 + 67720282.

It is an arithmetic number, because the mean of its divisors is an integer number (67720282).

Almost surely, 2^135440563 is an apocalyptic number.

135440563 is a deficient number, since it is larger than the sum of its proper divisors (1).

135440563 is an equidigital number, since it uses as much as digits as its factorization.

135440563 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 135440563 is about 11637.8934090324. The cubic root of 135440563 is about 513.5502166783.

The spelling of 135440563 in words is "one hundred thirty-five million, four hundred forty thousand, five hundred sixty-three".