135131213155 has 8 divisors (see below), whose sum is σ = 164905887600. Its totient is φ = 106272682656.

The previous prime is 135131213153. The next prime is 135131213159. The reversal of 135131213155 is 551312131531.

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 135131213155 - 2¹ = 135131213153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135131213153) 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 7 ways as a sum of consecutive naturals, for example, 229035660 + ... + 229036249.

It is an arithmetic number, because the mean of its divisors is an integer number (20613235950).

Almost surely, 2^135131213155 is an apocalyptic number.

135131213155 is a deficient number, since it is larger than the sum of its proper divisors (29774674445).

135131213155 is an equidigital number, since it uses as much as digits as its factorization.

135131213155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458071973.

The product of its digits is 6750, while the sum is 31.

Adding to 135131213155 its reverse (551312131531), we get a palindrome (686443344686).

The spelling of 135131213155 in words is "one hundred thirty-five billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred fifty-five".