135040241 has 4 divisors (see below), whose sum is σ = 154331712. Its totient is φ = 115748772.

The previous prime is 135040229. The next prime is 135040249. The reversal of 135040241 is 142040531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135040241 - 2⁶ = 135040177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135040249) 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, 9645725 + ... + 9645738.

It is an arithmetic number, because the mean of its divisors is an integer number (38582928).

Almost surely, 2^135040241 is an apocalyptic number.

It is an amenable number.

135040241 is a deficient number, since it is larger than the sum of its proper divisors (19291471).

135040241 is an equidigital number, since it uses as much as digits as its factorization.

135040241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19291470.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 135040241 is about 11620.6816065152. The cubic root of 135040241 is about 513.0437501557.

Adding to 135040241 its reverse (142040531), we get a palindrome (277080772).

The spelling of 135040241 in words is "one hundred thirty-five million, forty thousand, two hundred forty-one".