135131032447 has 8 divisors (see below), whose sum is σ = 137365605360. Its totient is φ = 132897082560.

The previous prime is 135131032373. The next prime is 135131032483. The reversal of 135131032447 is 744230131531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135131032447 - 2⁷ = 135131032319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135131032247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 292179 + ... + 596347.

It is an arithmetic number, because the mean of its divisors is an integer number (17170700670).

Almost surely, 2^135131032447 is an apocalyptic number.

135131032447 is a deficient number, since it is larger than the sum of its proper divisors (2234572913).

135131032447 is an equidigital number, since it uses as much as digits as its factorization.

135131032447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311513.

The product of its (nonzero) digits is 30240, while the sum is 34.

Adding to 135131032447 its reverse (744230131531), we get a palindrome (879361163978).

The spelling of 135131032447 in words is "one hundred thirty-five billion, one hundred thirty-one million, thirty-two thousand, four hundred forty-seven".