135511444445 has 16 divisors (see below), whose sum is σ = 175803914160. Its totient is φ = 99680600064.

The previous prime is 135511444433. The next prime is 135511444477. The reversal of 135511444445 is 544444115531.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6832840921 + 128678603524 = 82661^2 + 358718^2 .

It is a cyclic number.

It is not a de Polignac number, because 135511444445 - 2¹⁴ = 135511428061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4039310 + ... + 4072719.

It is an arithmetic number, because the mean of its divisors is an integer number (10987744635).

Almost surely, 2^135511444445 is an apocalyptic number.

It is an amenable number.

135511444445 is a deficient number, since it is larger than the sum of its proper divisors (40292469715).

135511444445 is a wasteful number, since it uses less digits than its factorization.

135511444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112304.

The product of its digits is 384000, while the sum is 41.

Adding to 135511444445 its reverse (544444115531), we get a palindrome (679955559976).

The spelling of 135511444445 in words is "one hundred thirty-five billion, five hundred eleven million, four hundred forty-four thousand, four hundred forty-five".