135240444244 has 12 divisors (see below), whose sum is σ = 236673964800. Its totient is φ = 67619311448.

The previous prime is 135240444239. The next prime is 135240444247. The reversal of 135240444244 is 442444042531.

It is a happy number.

It is a super-3 number, since 3×135240444244³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135240444247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192717 + ... + 554635.

It is an arithmetic number, because the mean of its divisors is an integer number (19722830400).

Almost surely, 2^135240444244 is an apocalyptic number.

It is an amenable number.

135240444244 is a deficient number, since it is larger than the sum of its proper divisors (101433520556).

135240444244 is a wasteful number, since it uses less digits than its factorization.

135240444244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455342 (or 455340 counting only the distinct ones).

The product of its (nonzero) digits is 245760, while the sum is 37.

Adding to 135240444244 its reverse (442444042531), we get a palindrome (577684486775).

The spelling of 135240444244 in words is "one hundred thirty-five billion, two hundred forty million, four hundred forty-four thousand, two hundred forty-four".