135042020435 has 16 divisors (see below), whose sum is σ = 186170130432. Its totient is φ = 92115420000.

The previous prime is 135042020387. The next prime is 135042020441. The reversal of 135042020435 is 534020240531.

It is a happy number.

It is not a de Polignac number, because 135042020435 - 2¹⁶ = 135041954899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135042020398 and 135042020407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10093691 + ... + 10107060.

It is an arithmetic number, because the mean of its divisors is an integer number (11635633152).

Almost surely, 2^135042020435 is an apocalyptic number.

135042020435 is a deficient number, since it is larger than the sum of its proper divisors (51128109997).

135042020435 is a wasteful number, since it uses less digits than its factorization.

135042020435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20200954.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 135042020435 its reverse (534020240531), we get a palindrome (669062260966).

The spelling of 135042020435 in words is "one hundred thirty-five billion, forty-two million, twenty thousand, four hundred thirty-five".