135520301 has 8 divisors (see below), whose sum is σ = 161614464. Its totient is φ = 111109680.

The previous prime is 135520267. The next prime is 135520309. The reversal of 135520301 is 103025531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135520301 - 2⁶ = 135520237 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135520309) 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 7 ways as a sum of consecutive naturals, for example, 420710 + ... + 421031.

It is an arithmetic number, because the mean of its divisors is an integer number (20201808).

Almost surely, 2^135520301 is an apocalyptic number.

It is an amenable number.

135520301 is a deficient number, since it is larger than the sum of its proper divisors (26094163).

135520301 is an equidigital number, since it uses as much as digits as its factorization.

135520301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841771.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 135520301 is about 11641.3186967800. The cubic root of 135520301 is about 513.6509778113.

Adding to 135520301 its reverse (103025531), we get a palindrome (238545832).

The spelling of 135520301 in words is "one hundred thirty-five million, five hundred twenty thousand, three hundred one".