135355244240 has 20 divisors (see below), whose sum is σ = 314700943044. Its totient is φ = 54142097664.

The previous prime is 135355244221. The next prime is 135355244279. The reversal of 135355244240 is 42442553531.

It can be written as a sum of positive squares in 2 ways, for example, as 70753872016 + 64601372224 = 265996^2 + 254168^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 135355244194 and 135355244203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 845970197 + ... + 845970356.

Almost surely, 2^135355244240 is an apocalyptic number.

135355244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135355244240 is an abundant number, since it is smaller than the sum of its proper divisors (179345698804).

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

135355244240 is a wasteful number, since it uses less digits than its factorization.

135355244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1691940566 (or 1691940560 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 135355244240 its reverse (42442553531), we get a palindrome (177797797771).

The spelling of 135355244240 in words is "one hundred thirty-five billion, three hundred fifty-five million, two hundred forty-four thousand, two hundred forty".