135505351044241 has 4 divisors (see below), whose sum is σ = 138656638277872. Its totient is φ = 132354063810612.

The previous prime is 135505351044227. The next prime is 135505351044269. The reversal of 135505351044241 is 142440153505531.

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 135505351044241 - 2²³ = 135505342655633 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 3151287233587 = 135505351044241 / (1 + 3 + 5 + 5 + 0 + 5 + 3 + 5 + 1 + 0 + 4 + 4 + 2 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135505351044341) 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, 1575643616751 + ... + 1575643616836.

It is an arithmetic number, because the mean of its divisors is an integer number (34664159569468).

Almost surely, 2^{135505351044241} is an apocalyptic number.

It is an amenable number.

135505351044241 is a deficient number, since it is larger than the sum of its proper divisors (3151287233631).

135505351044241 is an equidigital number, since it uses as much as digits as its factorization.

135505351044241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151287233630.

The product of its (nonzero) digits is 720000, while the sum is 43.

The spelling of 135505351044241 in words is "one hundred thirty-five trillion, five hundred five billion, three hundred fifty-one million, forty-four thousand, two hundred forty-one".