135435001243055 has 24 divisors (see below), whose sum is σ = 165337460475072. Its totient is φ = 106502471159616.

The previous prime is 135435001243043. The next prime is 135435001243093. The reversal of 135435001243055 is 550342100534531.

It is a de Polignac number, because none of the positive numbers 2^k-135435001243055 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206565929 + ... + 207220541.

It is an arithmetic number, because the mean of its divisors is an integer number (6889060853128).

Almost surely, 2^{135435001243055} is an apocalyptic number.

135435001243055 is a deficient number, since it is larger than the sum of its proper divisors (29902459232017).

135435001243055 is an equidigital number, since it uses as much as digits as its factorization.

135435001243055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666623 (or 666564 counting only the distinct ones).

The product of its (nonzero) digits is 540000, while the sum is 41.

Adding to 135435001243055 its reverse (550342100534531), we get a palindrome (685777101777586).

The spelling of 135435001243055 in words is "one hundred thirty-five trillion, four hundred thirty-five billion, one million, two hundred forty-three thousand, fifty-five".