135553121335 has 4 divisors (see below), whose sum is σ = 162663745608. Its totient is φ = 108442497064.

The previous prime is 135553121321. The next prime is 135553121369. The reversal of 135553121335 is 533121355531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135553121335 - 2⁵ = 135553121303 is a prime.

It is a super-2 number, since 2×135553121335² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135553121294 and 135553121303.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13555312129 + ... + 13555312138.

It is an arithmetic number, because the mean of its divisors is an integer number (40665936402).

Almost surely, 2^135553121335 is an apocalyptic number.

135553121335 is a deficient number, since it is larger than the sum of its proper divisors (27110624273).

135553121335 is an equidigital number, since it uses as much as digits as its factorization.

135553121335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27110624272.

The product of its digits is 101250, while the sum is 37.

Adding to 135553121335 its reverse (533121355531), we get a palindrome (668674476866).

The spelling of 135553121335 in words is "one hundred thirty-five billion, five hundred fifty-three million, one hundred twenty-one thousand, three hundred thirty-five".