135355104243 has 8 divisors (see below), whose sum is σ = 200526080400. Its totient is φ = 90236736144.

The previous prime is 135355104239. The next prime is 135355104263. The reversal of 135355104243 is 342401553531.

135355104243 is a `hidden beast` number, since 1 + 35 + 35 + 510 + 42 + 43 = 666.

It is not a de Polignac number, because 135355104243 - 2² = 135355104239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135355104198 and 135355104207.

It is not an unprimeable number, because it can be changed into a prime (135355104263) 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, 2506575978 + ... + 2506576031.

It is an arithmetic number, because the mean of its divisors is an integer number (25065760050).

Almost surely, 2^135355104243 is an apocalyptic number.

135355104243 is a deficient number, since it is larger than the sum of its proper divisors (65170976157).

135355104243 is an equidigital number, since it uses as much as digits as its factorization.

135355104243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5013152018 (or 5013152012 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 135355104243 its reverse (342401553531), we get a palindrome (477756657774).

The spelling of 135355104243 in words is "one hundred thirty-five billion, three hundred fifty-five million, one hundred four thousand, two hundred forty-three".