135423561024 has 84 divisors (see below), whose sum is σ = 388218722164. Its totient is φ = 45135194112.

The previous prime is 135423561011. The next prime is 135423561067. The reversal of 135423561024 is 420165324531.

135423561024 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 2 + 35 + 610 + 2 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32659718400 + 102763842624 = 180720^2 + 320568^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 135423561024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7304214 + ... + 7322730.

Almost surely, 2^135423561024 is an apocalyptic number.

It is an amenable number.

135423561024 is an abundant number, since it is smaller than the sum of its proper divisors (252795161140).

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

135423561024 is a wasteful number, since it uses less digits than its factorization.

135423561024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31232 (or 31219 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 135423561024 its reverse (420165324531), we get a palindrome (555588885555).

The spelling of 135423561024 in words is "one hundred thirty-five billion, four hundred twenty-three million, five hundred sixty-one thousand, twenty-four".