135604303 has 4 divisors (see below), whose sum is σ = 135632160. Its totient is φ = 135576448.

The previous prime is 135604279. The next prime is 135604331. The reversal of 135604303 is 303406531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135604303 - 2¹⁷ = 135473231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135604363) 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, 4498 + ... + 17071.

It is an arithmetic number, because the mean of its divisors is an integer number (33908040).

Almost surely, 2^135604303 is an apocalyptic number.

135604303 is a deficient number, since it is larger than the sum of its proper divisors (27857).

135604303 is an equidigital number, since it uses as much as digits as its factorization.

135604303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27856.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 135604303 is about 11644.9260624531. The cubic root of 135604303 is about 513.7570844172.

The spelling of 135604303 in words is "one hundred thirty-five million, six hundred four thousand, three hundred three".