135808753 has 4 divisors (see below), whose sum is σ = 138035188. Its totient is φ = 133582320.

The previous prime is 135808747. The next prime is 135808763. The reversal of 135808753 is 357808531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 357808531 = 6577 ⋅54403.

It can be written as a sum of positive squares in 2 ways, for example, as 58491904 + 77316849 = 7648^2 + 8793^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135808753 is a prime.

It is a super-3 number, since 3×135808753³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135808703) 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 in 3 ways as a sum of consecutive naturals, for example, 1113126 + ... + 1113247.

It is an arithmetic number, because the mean of its divisors is an integer number (34508797).

Almost surely, 2^135808753 is an apocalyptic number.

It is an amenable number.

135808753 is a deficient number, since it is larger than the sum of its proper divisors (2226435).

135808753 is an equidigital number, since it uses as much as digits as its factorization.

135808753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2226434.

The product of its (nonzero) digits is 100800, while the sum is 40.

The square root of 135808753 is about 11653.7012575405. The cubic root of 135808753 is about 514.0151511832.

The spelling of 135808753 in words is "one hundred thirty-five million, eight hundred eight thousand, seven hundred fifty-three".