135558563 has 4 divisors (see below), whose sum is σ = 154924080. Its totient is φ = 116193048.

The previous prime is 135558523. The next prime is 135558569. The reversal of 135558563 is 365855531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365855531 = 3671 ⋅99661.

It is a cyclic number.

It is not a de Polignac number, because 135558563 - 2¹⁶ = 135493027 is a prime.

It is a super-2 number, since 2×135558563² = 36752248005249938, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135558563.

It is not an unprimeable number, because it can be changed into a prime (135558569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9682748 + ... + 9682761.

It is an arithmetic number, because the mean of its divisors is an integer number (38731020).

Almost surely, 2^135558563 is an apocalyptic number.

135558563 is a deficient number, since it is larger than the sum of its proper divisors (19365517).

135558563 is an equidigital number, since it uses as much as digits as its factorization.

135558563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19365516.

The product of its digits is 270000, while the sum is 41.

The square root of 135558563 is about 11642.9619513249. The cubic root of 135558563 is about 513.6993136553.

The spelling of 135558563 in words is "one hundred thirty-five million, five hundred fifty-eight thousand, five hundred sixty-three".