135303565 has 4 divisors (see below), whose sum is σ = 162364284. Its totient is φ = 108242848.

The previous prime is 135303521. The next prime is 135303587. The reversal of 135303565 is 565303531.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25745476 + 109558089 = 5074^2 + 10467^2 .

It is a cyclic number.

It is not a de Polignac number, because 135303565 - 2⁹ = 135303053 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13530352 + ... + 13530361.

It is an arithmetic number, because the mean of its divisors is an integer number (40591071).

Almost surely, 2^135303565 is an apocalyptic number.

It is an amenable number.

135303565 is a deficient number, since it is larger than the sum of its proper divisors (27060719).

135303565 is an equidigital number, since it uses as much as digits as its factorization.

135303565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27060718.

The product of its (nonzero) digits is 20250, while the sum is 31.

The square root of 135303565 is about 11632.0060608650. The cubic root of 135303565 is about 513.3770064134.

The spelling of 135303565 in words is "one hundred thirty-five million, three hundred three thousand, five hundred sixty-five".