135523325531 has 8 divisors (see below), whose sum is σ = 147885351744. Its totient is φ = 123168253320.

The previous prime is 135523325513. The next prime is 135523325557.

135523325531 is nontrivially palindromic in base 10.

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 135523325531 - 2²² = 135519131227 is a prime.

It is a super-2 number, since 2×135523325531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135523325131) 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, 1697705 + ... + 1775738.

It is an arithmetic number, because the mean of its divisors is an integer number (18485668968).

Almost surely, 2^135523325531 is an apocalyptic number.

135523325531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135523325531 is a deficient number, since it is larger than the sum of its proper divisors (12362026213).

135523325531 is a wasteful number, since it uses less digits than its factorization.

135523325531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477001.

The product of its digits is 202500, while the sum is 38.

The spelling of 135523325531 in words is "one hundred thirty-five billion, five hundred twenty-three million, three hundred twenty-five thousand, five hundred thirty-one".