135597795531 has 32 divisors (see below), whose sum is σ = 200523513600. Its totient is φ = 80820432000.

The previous prime is 135597795503. The next prime is 135597795533.

135597795531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135597795531 - 2¹¹ = 135597793483 is a prime.

It is a super-2 number, since 2×135597795531² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135597795533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 360096 + ... + 633138.

It is an arithmetic number, because the mean of its divisors is an integer number (6266359800).

Almost surely, 2^135597795531 is an apocalyptic number.

135597795531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

135597795531 is a deficient number, since it is larger than the sum of its proper divisors (64925718069).

135597795531 is a wasteful number, since it uses less digits than its factorization.

135597795531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273307.

The product of its digits is 22325625, while the sum is 60.

The spelling of 135597795531 in words is "one hundred thirty-five billion, five hundred ninety-seven million, seven hundred ninety-five thousand, five hundred thirty-one".