135542343220 has 12 divisors (see below), whose sum is σ = 284638920804. Its totient is φ = 54216937280.

The previous prime is 135542343217. The next prime is 135542343227. The reversal of 135542343220 is 22343245531.

It can be written as a sum of positive squares in 2 ways, for example, as 19379980944 + 116162362276 = 139212^2 + 340826^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135542343227) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3388558561 + ... + 3388558600.

It is an arithmetic number, because the mean of its divisors is an integer number (23719910067).

Almost surely, 2^135542343220 is an apocalyptic number.

135542343220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135542343220 is an abundant number, since it is smaller than the sum of its proper divisors (149096577584).

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

135542343220 is a wasteful number, since it uses less digits than its factorization.

135542343220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777117170 (or 6777117168 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 135542343220 its reverse (22343245531), we get a palindrome (157885588751).

The spelling of 135542343220 in words is "one hundred thirty-five billion, five hundred forty-two million, three hundred forty-three thousand, two hundred twenty".