135213144044 has 24 divisors (see below), whose sum is σ = 266461095936. Its totient is φ = 59477922000.

The previous prime is 135213144037. The next prime is 135213144049. The reversal of 135213144044 is 440441312531.

It is a self number, because there is not a number n which added to its sum of digits gives 135213144044.

It is not an unprimeable number, because it can be changed into a prime (135213144049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49563572 + ... + 49566299.

It is an arithmetic number, because the mean of its divisors is an integer number (11102545664).

Almost surely, 2^135213144044 is an apocalyptic number.

It is an amenable number.

135213144044 is a deficient number, since it is larger than the sum of its proper divisors (131247951892).

135213144044 is a wasteful number, since it uses less digits than its factorization.

135213144044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99129917 (or 99129915 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

Adding to 135213144044 its reverse (440441312531), we get a palindrome (575654456575).

The spelling of 135213144044 in words is "one hundred thirty-five billion, two hundred thirteen million, one hundred forty-four thousand, forty-four".