135238265 has 4 divisors (see below), whose sum is σ = 162285924. Its totient is φ = 108190608.

The previous prime is 135238261. The next prime is 135238277. The reversal of 135238265 is 562832531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 562832531 = 313 ⋅1798187.

It can be written as a sum of positive squares in 2 ways, for example, as 47927929 + 87310336 = 6923^2 + 9344^2 .

It is a cyclic number.

It is not a de Polignac number, because 135238265 - 2² = 135238261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135238261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13523822 + ... + 13523831.

It is an arithmetic number, because the mean of its divisors is an integer number (40571481).

Almost surely, 2^135238265 is an apocalyptic number.

It is an amenable number.

135238265 is a deficient number, since it is larger than the sum of its proper divisors (27047659).

135238265 is an equidigital number, since it uses as much as digits as its factorization.

135238265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27047658.

The product of its digits is 43200, while the sum is 35.

The square root of 135238265 is about 11629.1988116121. The cubic root of 135238265 is about 513.2944047146.

The spelling of 135238265 in words is "one hundred thirty-five million, two hundred thirty-eight thousand, two hundred sixty-five".