135564113 has 4 divisors (see below), whose sum is σ = 136313268. Its totient is φ = 134814960.

The previous prime is 135564097. The next prime is 135564127. The reversal of 135564113 is 311465531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311465531 = 13 ⋅23958887.

It can be written as a sum of positive squares in 2 ways, for example, as 62837329 + 72726784 = 7927^2 + 8528^2 .

It is a cyclic number.

It is not a de Polignac number, because 135564113 - 2⁴ = 135564097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135564133) 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, 374306 + ... + 374667.

It is an arithmetic number, because the mean of its divisors is an integer number (34078317).

Almost surely, 2^135564113 is an apocalyptic number.

It is an amenable number.

135564113 is a deficient number, since it is larger than the sum of its proper divisors (749155).

135564113 is an equidigital number, since it uses as much as digits as its factorization.

135564113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749154.

The product of its digits is 5400, while the sum is 29.

The square root of 135564113 is about 11643.2002902982. The cubic root of 135564113 is about 513.7063241366.

The spelling of 135564113 in words is "one hundred thirty-five million, five hundred sixty-four thousand, one hundred thirteen".