135555307447 has 8 divisors (see below), whose sum is σ = 155366810496. Its totient is φ = 115855419192.

The previous prime is 135555307367. The next prime is 135555307469. The reversal of 135555307447 is 744703555531.

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 135555307447 - 2¹⁹ = 135554783159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135555307447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135555307487) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27901093 + ... + 27905950.

It is an arithmetic number, because the mean of its divisors is an integer number (19420851312).

Almost surely, 2^135555307447 is an apocalyptic number.

135555307447 is a deficient number, since it is larger than the sum of its proper divisors (19811503049).

135555307447 is an equidigital number, since it uses as much as digits as its factorization.

135555307447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55807397.

The product of its (nonzero) digits is 4410000, while the sum is 49.

The spelling of 135555307447 in words is "one hundred thirty-five billion, five hundred fifty-five million, three hundred seven thousand, four hundred forty-seven".