135440541025044 has 24 divisors (see below), whose sum is σ = 334617807238848. Its totient is φ = 42491150125440.

The previous prime is 135440541025003. The next prime is 135440541025063. The reversal of 135440541025044 is 440520145044531.

It is a junction number, because it is equal to n+sod(n) for n = 135440541024987 and 135440541025005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331962110152 + ... + 331962110559.

It is an arithmetic number, because the mean of its divisors is an integer number (13942408634952).

Almost surely, 2^{135440541025044} is an apocalyptic number.

It is an amenable number.

135440541025044 is an abundant number, since it is smaller than the sum of its proper divisors (199177266213804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135440541025044 is a wasteful number, since it uses less digits than its factorization.

135440541025044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663924220735 (or 663924220733 counting only the distinct ones).

The product of its (nonzero) digits is 768000, while the sum is 42.

Adding to 135440541025044 its reverse (440520145044531), we get a palindrome (575960686069575).

The spelling of 135440541025044 in words is "one hundred thirty-five trillion, four hundred forty billion, five hundred forty-one million, twenty-five thousand, forty-four".