135520265 has 4 divisors (see below), whose sum is σ = 162624324. Its totient is φ = 108416208.

The previous prime is 135520237. The next prime is 135520267. The reversal of 135520265 is 562025531.

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 19678096 + 115842169 = 4436^2 + 10763^2 .

It is a cyclic number.

It is not a de Polignac number, because 135520265 - 2⁸ = 135520009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135520267) 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, 13552022 + ... + 13552031.

It is an arithmetic number, because the mean of its divisors is an integer number (40656081).

Almost surely, 2^135520265 is an apocalyptic number.

It is an amenable number.

135520265 is a deficient number, since it is larger than the sum of its proper divisors (27104059).

135520265 is an equidigital number, since it uses as much as digits as its factorization.

135520265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27104058.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 135520265 is about 11641.3171505633. The cubic root of 135520265 is about 513.6509323287.

Adding to 135520265 its reverse (562025531), we get a palindrome (697545796).

The spelling of 135520265 in words is "one hundred thirty-five million, five hundred twenty thousand, two hundred sixty-five".