135611241 has 8 divisors (see below), whose sum is σ = 181433280. Its totient is φ = 90098352.

The previous prime is 135611233. The next prime is 135611263. The reversal of 135611241 is 142116531.

It is a happy number.

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

It is not a de Polignac number, because 135611241 - 2³ = 135611233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135611291) 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, 76261 + ... + 78018.

It is an arithmetic number, because the mean of its divisors is an integer number (22679160).

Almost surely, 2^135611241 is an apocalyptic number.

It is an amenable number.

135611241 is a deficient number, since it is larger than the sum of its proper divisors (45822039).

135611241 is a wasteful number, since it uses less digits than its factorization.

135611241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154575.

The product of its digits is 720, while the sum is 24.

The square root of 135611241 is about 11645.2239566270. The cubic root of 135611241 is about 513.7658461496.

Adding to 135611241 its reverse (142116531), we get a palindrome (277727772).

The spelling of 135611241 in words is "one hundred thirty-five million, six hundred eleven thousand, two hundred forty-one".