135240444345 has 16 divisors (see below), whose sum is σ = 218615483520. Its totient is φ = 71384646144.

The previous prime is 135240444323. The next prime is 135240444379. The reversal of 135240444345 is 543444042531.

It is not a de Polignac number, because 135240444345 - 2⁶ = 135240444281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46472925 + ... + 46475834.

It is an arithmetic number, because the mean of its divisors is an integer number (13663467720).

Almost surely, 2^135240444345 is an apocalyptic number.

135240444345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135240444345 is a deficient number, since it is larger than the sum of its proper divisors (83375039175).

135240444345 is an equidigital number, since it uses as much as digits as its factorization.

135240444345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92948864.

The product of its (nonzero) digits is 460800, while the sum is 39.

Adding to 135240444345 its reverse (543444042531), we get a palindrome (678684486876).

The spelling of 135240444345 in words is "one hundred thirty-five billion, two hundred forty million, four hundred forty-four thousand, three hundred forty-five".