135421024344145 has 16 divisors (see below), whose sum is σ = 163209208483152. Its totient is φ = 107867537182720.

The previous prime is 135421024344071. The next prime is 135421024344181. The reversal of 135421024344145 is 541443420124531.

It can be written as a sum of positive squares in 8 ways, for example, as 745185024081 + 134675839320064 = 863241^2 + 11604992^2 .

It is not a de Polignac number, because 135421024344145 - 2¹⁹ = 135421023819857 is a prime.

It is a Duffinian 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, 26952339 + ... + 31579591.

It is an arithmetic number, because the mean of its divisors is an integer number (10200575530197).

Almost surely, 2^{135421024344145} is an apocalyptic number.

It is an amenable number.

135421024344145 is a deficient number, since it is larger than the sum of its proper divisors (27788184139007).

135421024344145 is a wasteful number, since it uses less digits than its factorization.

135421024344145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4652612.

The product of its (nonzero) digits is 921600, while the sum is 43.

Adding to 135421024344145 its reverse (541443420124531), we get a palindrome (676864444468676).

The spelling of 135421024344145 in words is "one hundred thirty-five trillion, four hundred twenty-one billion, twenty-four million, three hundred forty-four thousand, one hundred forty-five".